CVE-2019-1006 — WCF/WIF SAML Token Authentication Bypass Vulnerability

Important CVSS 7.5 EPSS 0.06024 2019-07 archive

Executive Summary

An authentication bypass vulnerability exists in Windows Communication Foundation (WCF) and Windows Identity Foundation (WIF), allowing signing of SAML tokens with arbitrary symmetric keys. This vulnerability allows an attacker to impersonate another user, which can lead to elevation of privileges. The vulnerability exists in WCF, WIF 3.5 and above in .NET Framework, WIF 1.0 component in Windows, WIF Nuget package, and WIF implementation in SharePoint. An unauthenticated attacker can exploit this by signing a SAML token with any arbitrary symmetric key. This security update addresses the issue by ensuring all versions of WCF and WIF validate the key used to sign SAML tokens correctly.

Overview

7.5

CVSS HIGH

Important

MS Severity

Not Exploited

MS Exploit Status

Less Likely

MS Exploit Likelihood

Category Elevation of Privilege

Released Jul 9 2019

Last Updated Jul 9 2019

Publicly Disclosed No

CISA KEV Not Listed

Known Exploits None Known

EPSS Score 0.06024 — 0.9258 percentile

NVD CVSS 7.5 HIGH — differs from MSRC

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

ATTACK VECTOR

Network

ATTACK COMPLEXITY

Low

PRIVILEGES REQUIRED

None

USER INTERACTION

None

SCOPE

Unchanged

EPSS Score

0.06024

probability of exploitation in the next 30 days

0.9258 percentile - updated 2026-07-25

View on FIRST.org

Affected Products

59 affected products

Product	KB Article	Severity	Impact	Restart Required
Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2 4507423 (Monthly Rollup) 4507414 (Security Only) 4507423 (Monthly Rollup) 4507414 (Security Only) 4507423 (Monthly Rollup) 4507414 (Security Only) Important Elevation of Privilege 4489489; 4499409 4499409; 4503868 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for Itanium-Based Systems Service Pack 2 4507423 (Monthly Rollup) 4507414 (Security Only) 4507423 (Monthly Rollup) 4507414 (Security Only) 4507423 (Monthly Rollup) 4507414 (Security Only) Important Elevation of Privilege 4489489; 4499409 4499409; 4503868 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2 4507423 (Monthly Rollup) 4507414 (Security Only) 4507423 (Monthly Rollup) 4507414 (Security Only) 4507423 (Monthly Rollup) 4507414 (Security Only) Important Elevation of Privilege 4489489; 4499409 4499409; 4503868 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.0 Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2 4507423 (Monthly Rollup) 4507414 (Security Only) 4507423 (Monthly Rollup) 4507414 (Security Only) 4507423 (Monthly Rollup) 4507414 (Security Only) Important Elevation of Privilege 4489489; 4499409 4499409; 4503868 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.0 Service Pack 2 on Windows Server 2008 for Itanium-Based Systems Service Pack 2 4507423 (Monthly Rollup) 4507414 (Security Only) 4507423 (Monthly Rollup) 4507414 (Security Only) 4507423 (Monthly Rollup) 4507414 (Security Only) Important Elevation of Privilege 4489489; 4499409 4499409; 4503868 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.0 Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2 4507423 (Monthly Rollup) 4507414 (Security Only) 4507423 (Monthly Rollup) 4507414 (Security Only) 4507423 (Monthly Rollup) 4507414 (Security Only) Important Elevation of Privilege 4489489; 4499409 4499409; 4503868 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for 32-bit Systems 4507419 (Security Update) 4507419 (Security Update) Important Elevation of Privilege 4486553; 4499405; 4503864 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for x64-based Systems 4507419 (Security Update) 4507419 (Security Update) Important Elevation of Privilege 4486553; 4499405; 4503864 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019 4507419 (Security Update) 4507419 (Security Update) Important Elevation of Privilege 4486553; 4499405; 4503864 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019 (Server Core installation) 4507419 (Security Update) 4507419 (Security Update) Important Elevation of Privilege 4486553; 4499405; 4503864 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for 32-bit Systems 4507419 (Security Update) 4507419 (Security Update) Important Elevation of Privilege 4486553; 4499405; 4503864 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for x64-based Systems 4507419 (Security Update) 4507419 (Security Update) Important Elevation of Privilege 4486553; 4499405; 4503864 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for 32-bit Systems	`4506991 (Security Update)`	Important	Elevation of Privilege	Maybe
Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for x64-based Systems	`4506991 (Security Update)`	Important	Elevation of Privilege	Maybe
Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019 4507419 (Security Update) 4507419 (Security Update) Important Elevation of Privilege 4486553; 4499405; 4503864 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019 (Server Core installation) 4507419 (Security Update) 4507419 (Security Update) Important Elevation of Privilege 4486553; 4499405; 4503864 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 AND 4.8 on Windows Server, version 1903 (Server Core installation)	`4506991 (Security Update)`	Important	Elevation of Privilege	Maybe
Microsoft .NET Framework 3.5 on Windows 10 for 32-bit Systems	`4507458 (Security Update)`	Important	Elevation of Privilege	Yes
Microsoft .NET Framework 3.5 on Windows 10 for x64-based Systems	`4507458 (Security Update)`	Important	Elevation of Privilege	Yes
Microsoft .NET Framework 3.5 on Windows 10 Version 1607 for 32-bit Systems	`4507460 (Security Update)`	Important	Elevation of Privilege	Yes
Microsoft .NET Framework 3.5 on Windows 10 Version 1607 for x64-based Systems	`4507460 (Security Update)`	Important	Elevation of Privilege	Yes
Microsoft .NET Framework 3.5 on Windows 10 Version 1703 for 32-bit Systems	`4507450 (Security Update)`	Important	Elevation of Privilege	Yes
Microsoft .NET Framework 3.5 on Windows 10 Version 1703 for x64-based Systems	`4507450 (Security Update)`	Important	Elevation of Privilege	Yes
Microsoft .NET Framework 3.5 on Windows 10 Version 1709 for 32-bit Systems	`4507455 (Security Update)`	Important	Elevation of Privilege	Yes
Microsoft .NET Framework 3.5 on Windows 10 Version 1709 for x64-based Systems	`4507455 (Security Update)`	Important	Elevation of Privilege	Yes
Microsoft .NET Framework 3.5 on Windows 10 Version 1803 for 32-bit Systems	`4507435 (Security Update)`	Important	Elevation of Privilege	Yes
Microsoft .NET Framework 3.5 on Windows 10 Version 1803 for x64-based Systems	`4507435 (Security Update)`	Important	Elevation of Privilege	Yes
Microsoft .NET Framework 3.5 on Windows 8.1 for 32-bit systems 4507422 (Monthly Rollup) 4507413 (Security Only) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507413 (Security Only) 4507413 (Security Only) 4507422 (Monthly Rollup) 4507413 (Security Only) Important Elevation of Privilege 4499408; 4503867 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 on Windows 8.1 for x64-based systems 4507422 (Monthly Rollup) 4507413 (Security Only) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507413 (Security Only) 4507413 (Security Only) 4507422 (Monthly Rollup) 4507413 (Security Only) Important Elevation of Privilege 4499408; 4503867 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 on Windows Server 2012 4507421 (Monthly Rollup) 4507412 (Security Only) 4507421 (Monthly Rollup) 4507412 (Security Only) 4507421 (Monthly Rollup) 4507412 (Security Only) 4507421 (Monthly Rollup) 4507412 (Security Only) Important Elevation of Privilege 4499407; 4503866 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 on Windows Server 2012 (Server Core installation) 4507421 (Monthly Rollup) 4507412 (Security Only) 4507421 (Monthly Rollup) 4507412 (Security Only) 4507421 (Monthly Rollup) 4507412 (Security Only) 4507421 (Monthly Rollup) 4507412 (Security Only) Important Elevation of Privilege 4499407; 4503866 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 on Windows Server 2012 R2 4507422 (Monthly Rollup) 4507413 (Security Only) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507413 (Security Only) 4507413 (Security Only) 4507422 (Monthly Rollup) 4507413 (Security Only) Important Elevation of Privilege 4499408; 4503867 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 on Windows Server 2012 R2 (Server Core installation) 4507422 (Monthly Rollup) 4507413 (Security Only) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507413 (Security Only) 4507413 (Security Only) 4507422 (Monthly Rollup) 4507413 (Security Only) Important Elevation of Privilege 4499408; 4503867 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 on Windows Server 2016	`4507460 (Security Update)`	Important	Elevation of Privilege	Yes
Microsoft .NET Framework 3.5 on Windows Server 2016 (Server Core installation)	`4507460 (Security Update)`	Important	Elevation of Privilege	Yes
Microsoft .NET Framework 3.5 on Windows Server, version 1803 (Server Core Installation)	`4507435 (Security Update)`	Important	Elevation of Privilege	Yes
Microsoft .NET Framework 3.5.1 on Windows 7 for 32-bit Systems Service Pack 1 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) Important Elevation of Privilege 4499406; 4503865 4503865 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5.1 on Windows 7 for x64-based Systems Service Pack 1 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) Important Elevation of Privilege 4499406; 4503865 4503865 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) Important Elevation of Privilege 4499406; 4503865 4503865 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) Important Elevation of Privilege 4499406; 4503865 4503865 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) Important Elevation of Privilege 4499406; 4503865 4503865 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows 7 for 32-bit Systems Service Pack 1 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) Important Elevation of Privilege 4499406; 4503865 4503865 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows 7 for x64-based Systems Service Pack 1 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) Important Elevation of Privilege 4499406; 4503865 4503865 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows 8.1 for 32-bit systems 4507422 (Monthly Rollup) 4507413 (Security Only) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507413 (Security Only) 4507413 (Security Only) 4507422 (Monthly Rollup) 4507413 (Security Only) Important Elevation of Privilege 4499408; 4503867 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows 8.1 for x64-based systems 4507422 (Monthly Rollup) 4507413 (Security Only) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507413 (Security Only) 4507413 (Security Only) 4507422 (Monthly Rollup) 4507413 (Security Only) Important Elevation of Privilege 4499408; 4503867 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows RT 8.1 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) Important Elevation of Privilege 4499408; 4503867 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows Server 2008 for 32-bit Systems Service Pack 2 4507423 (Monthly Rollup) 4507414 (Security Only) 4507423 (Monthly Rollup) 4507414 (Security Only) 4507423 (Monthly Rollup) 4507414 (Security Only) Important Elevation of Privilege 4489489; 4499409 4499409; 4503868 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows Server 2008 for x64-based Systems Service Pack 2 4507423 (Monthly Rollup) 4507414 (Security Only) 4507423 (Monthly Rollup) 4507414 (Security Only) 4507423 (Monthly Rollup) 4507414 (Security Only) Important Elevation of Privilege 4489489; 4499409 4499409; 4503868 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) Important Elevation of Privilege 4499406; 4503865 4503865 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) Important Elevation of Privilege 4499406; 4503865 4503865 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows Server 2012 4507421 (Monthly Rollup) 4507412 (Security Only) 4507421 (Monthly Rollup) 4507412 (Security Only) 4507421 (Monthly Rollup) 4507412 (Security Only) 4507421 (Monthly Rollup) 4507412 (Security Only) Important Elevation of Privilege 4499407; 4503866 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows Server 2012 (Server Core installation) 4507421 (Monthly Rollup) 4507412 (Security Only) 4507421 (Monthly Rollup) 4507412 (Security Only) 4507421 (Monthly Rollup) 4507412 (Security Only) 4507421 (Monthly Rollup) 4507412 (Security Only) Important Elevation of Privilege 4499407; 4503866 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows Server 2012 R2 4507422 (Monthly Rollup) 4507413 (Security Only) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507413 (Security Only) 4507413 (Security Only) 4507422 (Monthly Rollup) 4507413 (Security Only) Important Elevation of Privilege 4499408; 4503867 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows Server 2012 R2 (Server Core installation) 4507422 (Monthly Rollup) 4507413 (Security Only) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507413 (Security Only) 4507413 (Security Only) 4507422 (Monthly Rollup) 4507413 (Security Only) Important Elevation of Privilege 4499408; 4503867 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6 on Windows Server 2008 for 32-bit Systems Service Pack 2 4507423 (Monthly Rollup) 4507414 (Security Only) 4507423 (Monthly Rollup) 4507414 (Security Only) 4507423 (Monthly Rollup) 4507414 (Security Only) Important Elevation of Privilege 4489489; 4499409 4499409; 4503868 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6 on Windows Server 2008 for x64-based Systems Service Pack 2 4507423 (Monthly Rollup) 4507414 (Security Only) 4507423 (Monthly Rollup) 4507414 (Security Only) 4507423 (Monthly Rollup) 4507414 (Security Only) Important Elevation of Privilege 4489489; 4499409 4499409; 4503868 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6/4.6.1/4.6.2 on Windows 10 for 32-bit Systems	`4507458 (Security Update)`	Important	Elevation of Privilege	Yes
Microsoft .NET Framework 4.6/4.6.1/4.6.2 on Windows 10 for x64-based Systems	`4507458 (Security Update)`	Important	Elevation of Privilege	Yes
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows 7 for 32-bit Systems Service Pack 1 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) Important Elevation of Privilege 4499406; 4503865 4503865 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows 7 for x64-based Systems Service Pack 1 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) Important Elevation of Privilege 4499406; 4503865 4503865 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows 8.1 for 32-bit systems 4507422 (Monthly Rollup) 4507413 (Security Only) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507413 (Security Only) 4507413 (Security Only) 4507422 (Monthly Rollup) 4507413 (Security Only) Important Elevation of Privilege 4499408; 4503867 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows 8.1 for x64-based systems 4507422 (Monthly Rollup) 4507413 (Security Only) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507413 (Security Only) 4507413 (Security Only) 4507422 (Monthly Rollup) 4507413 (Security Only) Important Elevation of Privilege 4499408; 4503867 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows RT 8.1 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) Important Elevation of Privilege 4499408; 4503867 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) Important Elevation of Privilege 4499406; 4503865 4503865 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) Important Elevation of Privilege 4499406; 4503865 4503865 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 4507421 (Monthly Rollup) 4507412 (Security Only) 4507421 (Monthly Rollup) 4507412 (Security Only) 4507421 (Monthly Rollup) 4507412 (Security Only) 4507421 (Monthly Rollup) 4507412 (Security Only) Important Elevation of Privilege 4499407; 4503866 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 (Server Core installation) 4507421 (Monthly Rollup) 4507412 (Security Only) 4507421 (Monthly Rollup) 4507412 (Security Only) 4507421 (Monthly Rollup) 4507412 (Security Only) 4507421 (Monthly Rollup) 4507412 (Security Only) Important Elevation of Privilege 4499407; 4503866 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2 4507422 (Monthly Rollup) 4507413 (Security Only) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507413 (Security Only) 4507413 (Security Only) 4507422 (Monthly Rollup) 4507413 (Security Only) Important Elevation of Privilege 4499408; 4503867 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2 (Server Core installation) 4507422 (Monthly Rollup) 4507413 (Security Only) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507413 (Security Only) 4507413 (Security Only) 4507422 (Monthly Rollup) 4507413 (Security Only) Important Elevation of Privilege 4499408; 4503867 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems	`4506986 (Security Update)`	Important	Elevation of Privilege	Maybe
Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems	`4506986 (Security Update)`	Important	Elevation of Privilege	Maybe
Microsoft .NET Framework 4.8 on Windows 10 Version 1703 for 32-bit Systems	`4506987 (Security Update)`	Important	Elevation of Privilege	Maybe
Microsoft .NET Framework 4.8 on Windows 10 Version 1703 for x64-based Systems	`4506986 (Security Update)`	Important	Elevation of Privilege	Maybe
Microsoft .NET Framework 4.8 on Windows 10 Version 1709 for 32-bit Systems	`4506988 (Security Update)`	Important	Elevation of Privilege	Maybe
Microsoft .NET Framework 4.8 on Windows 10 Version 1709 for x64-based Systems	`4506986 (Security Update)`	Important	Elevation of Privilege	Maybe
Microsoft .NET Framework 4.8 on Windows 10 Version 1803 for 32-bit Systems	`4506989 (Security Update)`	Important	Elevation of Privilege	Maybe
Microsoft .NET Framework 4.8 on Windows 10 Version 1803 for x64-based Systems	`4506989 (Security Update)`	Important	Elevation of Privilege	Maybe
Microsoft .NET Framework 4.8 on Windows 7 for 32-bit Systems Service Pack 1 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) Important Elevation of Privilege 4499406; 4503865 4503865 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.8 on Windows 7 for x64-based Systems Service Pack 1 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) Important Elevation of Privilege 4499406; 4503865 4503865 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.8 on Windows 8.1 for 32-bit systems 4507422 (Monthly Rollup) 4507413 (Security Only) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507413 (Security Only) 4507413 (Security Only) 4507422 (Monthly Rollup) 4507413 (Security Only) Important Elevation of Privilege 4499408; 4503867 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.8 on Windows 8.1 for x64-based systems 4507422 (Monthly Rollup) 4507413 (Security Only) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507413 (Security Only) 4507413 (Security Only) 4507422 (Monthly Rollup) 4507413 (Security Only) Important Elevation of Privilege 4499408; 4503867 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.8 on Windows RT 8.1 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) Important Elevation of Privilege 4499408; 4503867 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) Important Elevation of Privilege 4499406; 4503865 4503865 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) 4507420 (Monthly Rollup) 4507411 (Security Only) Important Elevation of Privilege 4499406; 4503865 4503865 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.8 on Windows Server 2012 4507421 (Monthly Rollup) 4507412 (Security Only) 4507421 (Monthly Rollup) 4507412 (Security Only) 4507421 (Monthly Rollup) 4507412 (Security Only) 4507421 (Monthly Rollup) 4507412 (Security Only) Important Elevation of Privilege 4499407; 4503866 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.8 on Windows Server 2012 (Server Core installation) 4507421 (Monthly Rollup) 4507412 (Security Only) 4507421 (Monthly Rollup) 4507412 (Security Only) 4507421 (Monthly Rollup) 4507412 (Security Only) 4507421 (Monthly Rollup) 4507412 (Security Only) Important Elevation of Privilege 4499407; 4503866 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.8 on Windows Server 2012 R2 4507422 (Monthly Rollup) 4507413 (Security Only) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507413 (Security Only) 4507413 (Security Only) 4507422 (Monthly Rollup) 4507413 (Security Only) Important Elevation of Privilege 4499408; 4503867 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.8 on Windows Server 2012 R2 (Server Core installation) 4507422 (Monthly Rollup) 4507413 (Security Only) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507422 (Monthly Rollup) 4507413 (Security Only) 4507413 (Security Only) 4507422 (Monthly Rollup) 4507413 (Security Only) Important Elevation of Privilege 4499408; 4503867 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.8 on Windows Server 2016	`4506986 (Security Update)`	Important	Elevation of Privilege	Maybe
Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation)	`4506986 (Security Update)`	Important	Elevation of Privilege	Maybe
Microsoft .NET Framework 4.8 on Windows Server, version 1803 (Server Core Installation)	`4506989 (Security Update)`	Important	Elevation of Privilege	Maybe
Microsoft SharePoint Enterprise Server 2013 Service Pack 1	`4475522 (Security Update)`	Important	Elevation of Privilege	Maybe
Microsoft SharePoint Enterprise Server 2016	`4475520 (Security Update)`	Important	Elevation of Privilege	Maybe
Microsoft SharePoint Foundation 2010 Service Pack 2	`4475510 (Security Update)`	Important	Elevation of Privilege	Maybe
Microsoft SharePoint Foundation 2013 Service Pack 1	`4475527 (Security Update)`	Important	Elevation of Privilege	Maybe
Microsoft SharePoint Server 2019	`4475529 (Security Update)`	Important	Elevation of Privilege	Maybe
Microsoft.IdentityModel 7.0.0	`Release Notes (Security Update)`	Important	Elevation of Privilege	Maybe
Windows 10 for 32-bit Systems	`4507458 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 10 for x64-based Systems	`4507458 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 10 Version 1607 for 32-bit Systems	`4507460 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 10 Version 1607 for x64-based Systems	`4507460 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 10 Version 1703 for 32-bit Systems	`4507450 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 10 Version 1703 for x64-based Systems	`4507450 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 10 Version 1709 for 32-bit Systems	`4507455 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 10 Version 1709 for ARM64-based Systems	`4507455 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 10 Version 1709 for x64-based Systems	`4507455 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 10 Version 1803 for 32-bit Systems	`4507435 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 10 Version 1803 for ARM64-based Systems	`4507435 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 10 Version 1803 for x64-based Systems	`4507435 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 10 Version 1809 for 32-bit Systems	`4507469 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 10 Version 1809 for ARM64-based Systems	`4507469 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 10 Version 1809 for x64-based Systems	`4507469 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 10 Version 1903 for 32-bit Systems	`4507453 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 10 Version 1903 for ARM64-based Systems	`4507453 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 10 Version 1903 for x64-based Systems	`4507453 (Security Update)`	Important	Elevation of Privilege	Yes
Windows 7 for 32-bit Systems Service Pack 1 4507449 (Monthly Rollup) 4507456 (Security Only) Important Elevation of Privilege 4503292 Base: N/A Temporal: N/A Vector: N/A Yes None Windows 7 for x64-based Systems Service Pack 1 4507449 (Monthly Rollup) 4507456 (Security Only) Important Elevation of Privilege 4503292 Base: N/A Temporal: N/A Vector: N/A Yes None Windows 8.1 for 32-bit systems 4507448 (Monthly Rollup) 4507457 (Security Only) 4507448 (Monthly Rollup) Important Elevation of Privilege 4503276 Base: N/A Temporal: N/A Vector: N/A Yes None Windows 8.1 for x64-based systems 4507448 (Monthly Rollup) 4507457 (Security Only) 4507448 (Monthly Rollup) Important Elevation of Privilege 4503276 Base: N/A Temporal: N/A Vector: N/A Yes None Windows RT 8.1 4507448 (Monthly Rollup) 4507448 (Monthly Rollup) Important Elevation of Privilege 4503276 Base: N/A Temporal: N/A Vector: N/A Yes None Windows Server 2008 for 32-bit Systems Service Pack 2 4507452 (Monthly Rollup) 4507461 (Security Only) Important Elevation of Privilege 4503273 Base: N/A Temporal: N/A Vector: N/A Yes None Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 4507452 (Monthly Rollup) 4507461 (Security Only) Important Elevation of Privilege 4503273 Base: N/A Temporal: N/A Vector: N/A Yes None Windows Server 2008 for Itanium-Based Systems Service Pack 2 4507452 (Monthly Rollup) 4507461 (Security Only) Important Elevation of Privilege 4503273 Base: N/A Temporal: N/A Vector: N/A Yes None Windows Server 2008 for x64-based Systems Service Pack 2 4507452 (Monthly Rollup) 4507461 (Security Only) Important Elevation of Privilege 4503273 Base: N/A Temporal: N/A Vector: N/A Yes None Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 4507452 (Monthly Rollup) 4507461 (Security Only) Important Elevation of Privilege 4503273 Base: N/A Temporal: N/A Vector: N/A Yes None Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 4507449 (Monthly Rollup) 4507456 (Security Only) Important Elevation of Privilege 4503292 Base: N/A Temporal: N/A Vector: N/A Yes None Windows Server 2008 R2 for x64-based Systems Service Pack 1 4507449 (Monthly Rollup) 4507456 (Security Only) Important Elevation of Privilege 4503292 Base: N/A Temporal: N/A Vector: N/A Yes None Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4507449 (Monthly Rollup) 4507456 (Security Only) Important Elevation of Privilege 4503292 Base: N/A Temporal: N/A Vector: N/A Yes None Windows Server 2012 4507462 (Monthly Rollup) 4507464 (Security Only) Important Elevation of Privilege 4503285 Base: N/A Temporal: N/A Vector: N/A Yes None Windows Server 2012 (Server Core installation) 4507462 (Monthly Rollup) 4507464 (Security Only) Important Elevation of Privilege 4503285 Base: N/A Temporal: N/A Vector: N/A Yes None Windows Server 2012 R2 4507448 (Monthly Rollup) 4507457 (Security Only) 4507448 (Monthly Rollup) Important Elevation of Privilege 4503276 Base: N/A Temporal: N/A Vector: N/A Yes None Windows Server 2012 R2 (Server Core installation) 4507448 (Monthly Rollup) 4507457 (Security Only) 4507448 (Monthly Rollup) Important Elevation of Privilege 4503276 Base: N/A Temporal: N/A Vector: N/A Yes None Windows Server 2016	`4507460 (Security Update)`	Important	Elevation of Privilege	Yes
Windows Server 2016 (Server Core installation)	`4507460 (Security Update)`	Important	Elevation of Privilege	Yes
Windows Server 2019	`4507469 (Security Update)`	Important	Elevation of Privilege	Yes
Windows Server 2019 (Server Core installation)	`4507469 (Security Update)`	Important	Elevation of Privilege	Yes
Windows Server, version 1803 (Server Core Installation)	`4507435 (Security Update)`	Important	Elevation of Privilege	Yes
Windows Server, version 1903 (Server Core installation)	`4507453 (Security Update)`	Important	Elevation of Privilege	Yes

Patches

18 patches

Article	Type	Restart
`4506991`	Security Update	Maybe
`4507458`	Security Update	Yes
`4507460`	Security Update	Yes
`4507450`	Security Update	Yes
`4507455`	Security Update	Yes
`4507435`	Security Update	Yes
`4506986`	Security Update	Maybe
`4506987`	Security Update	Maybe
`4506988`	Security Update	Maybe
`4506989`	Security Update	Maybe
`4475522`	Security Update	Maybe
`4475520`	Security Update	Maybe
`4475510`	Security Update	Maybe
`4475527`	Security Update	Maybe
`4475529`	Security Update	Maybe
`Release Notes`	Security Update	Maybe
`4507469`	Security Update	Yes
`4507453`	Security Update	Yes

Known Exploits

No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.

Acknowledgments

Oleksandr Mirosh (@olekmirosh) and Alvaro Munoz (@pwntester) from Micro Focus Fortify

References

MSRC Advisory MITRE NVD

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