OnlyFm252
.NET Core

CVE-2023-29331 — .NET, .NET Framework, and Visual Studio Denial of Service Vulnerability

Important CVSS 7.5 EPSS 0.02627 2023-06 archive

Executive Summary

None

Overview

7.5
CVSS HIGH
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
Category Denial of Service
Released Jun 13 2023
Last Updated Jun 13 2023
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.02627 — 0.83514 percentile
NVD CVSS 7.5 HIGH — matches MSRC

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C
ATTACK VECTOR
Network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
None
USER INTERACTION
None
SCOPE
Unchanged
CONFIDENTIALITY
None
INTEGRITY
None
AVAILABILITY
High
EXPLOIT CODE MATURITY
Proof-of-Concept
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 6.7

EPSS Score

0.02627
probability of exploitation in the next 30 days
0.83514 percentile - updated 2026-06-21
View on FIRST.org

Affected Products

49 affected products
Product KB Article Severity Impact Restart Required
.NET 6.0 5027797 (Security Update) Important Denial of Service Maybe
.NET 7.0 5027798 (Security Update) Important Denial of Service Maybe
Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2 5027543 (Monthly Rollup) 5027534 (Security Only) Important Denial of Service 5022734 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C 3.0.6920.8954; 2.0.50727.8970 Maybe None Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2 5027534 (Security Only) 5027543 (Monthly Rollup) Important Denial of Service 5022734 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C 4.7.4050.0 3.0.6920.8954; 2.0.50727.8970 Maybe None Microsoft .NET Framework 3.0 Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2 5027543 (Monthly Rollup) 5027534 (Security Only) Important Denial of Service 5022734 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C 3.0.6920.8954; 2.0.50727.8970 Maybe None Microsoft .NET Framework 3.0 Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2 5027534 (Security Only) 5027543 (Monthly Rollup) Important Denial of Service 5022734 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C 4.7.4050.0 3.0.6920.8954; 2.0.50727.8970 Maybe None Microsoft .NET Framework 3.5 and 4.6.2 on Windows 10 for 32-bit Systems 5027230 (Security Update) Important Denial of Service Yes
Microsoft .NET Framework 3.5 and 4.6.2 on Windows 10 for x64-based Systems 5027230 (Security Update) Important Denial of Service Yes
Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for 32-bit Systems 5027219 (Security Update) Important Denial of Service Yes
Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for x64-based Systems 5027219 (Security Update) Important Denial of Service Yes
Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016 5027219 (Security Update) Important Denial of Service Yes
Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016 (Server Core installation) 5027219 (Security Update) Important Denial of Service Yes
Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for 32-bit Systems 5027536 (Security Update) Important Denial of Service Maybe
Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for ARM64-based Systems 5027536 (Security Update) Important Denial of Service Maybe
Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for x64-based Systems 5027536 (Security Update) Important Denial of Service Maybe
Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019 5027536 (Security Update) Important Denial of Service Maybe
Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019 (Server Core installation) 5027536 (Security Update) Important Denial of Service Maybe
Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for 32-bit Systems 5027536 (Security Update) Important Denial of Service Maybe
Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for x64-based Systems 5027536 (Security Update) Important Denial of Service Maybe
Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 21H2 for 32-bit Systems 5027537 (Security Update) Important Denial of Service Maybe
Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 21H2 for ARM64-based Systems 5027537 (Security Update) Important Denial of Service Maybe
Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 21H2 for x64-based Systems 5027537 (Security Update) Important Denial of Service Maybe
Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2 for 32-bit Systems 5027538 (Security Update) Important Denial of Service Maybe
Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2 for ARM64-based Systems 5027538 (Security Update) Important Denial of Service Maybe
Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2 for x64-based Systems 5027538 (Security Update) Important Denial of Service Maybe
Microsoft .NET Framework 3.5 AND 4.8 on Windows 11 version 21H2 for ARM64-based Systems 5027539 (Security Update) Important Denial of Service Maybe
Microsoft .NET Framework 3.5 AND 4.8 on Windows 11 version 21H2 for x64-based Systems 5027539 (Security Update) Important Denial of Service Maybe
Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019 5027536 (Security Update) Important Denial of Service Maybe
Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019 (Server Core installation) 5027536 (Security Update) Important Denial of Service Maybe
Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022 5027544 (Security Update) Important Denial of Service Maybe
Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022 (Server Core installation) 5027544 (Security Update) Important Denial of Service Maybe
Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 21H2 for 32-bit Systems 5027537 (Security Update) Important Denial of Service Maybe
Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 21H2 for ARM64-based Systems 5027537 (Security Update) Important Denial of Service Maybe
Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 21H2 for x64-based Systems 5027537 (Security Update) Important Denial of Service Maybe
Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 22H2 for 32-bit Systems 5027538 (Security Update) Important Denial of Service Maybe
Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 22H2 for ARM64-based Systems 5027538 (Security Update) Important Denial of Service Maybe
Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 22H2 for x64-based Systems 5027538 (Security Update) Important Denial of Service Maybe
Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 21H2 for ARM64-based Systems 5027539 (Security Update) Important Denial of Service Maybe
Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 21H2 for x64-based Systems 5027539 (Security Update) Important Denial of Service Maybe
Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 22H2 for ARM64-based Systems 5027119 (Security Update) Important Denial of Service Maybe
Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 22H2 for x64-based Systems 5027119 (Security Update) Important Denial of Service Maybe
Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2022 5027544 (Security Update) Important Denial of Service Maybe
Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2022 (Server Core installation) 5027544 (Security Update) Important Denial of Service Maybe
Microsoft .NET Framework 3.5 on Windows Server 2012 5027541 (Monthly Rollup) 5027532 (Security Only) Important Denial of Service 5022732 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C 3.0.6920.8954; 2.0.50727.8970 Maybe None Microsoft .NET Framework 3.5 on Windows Server 2012 (Server Core installation) 5027541 (Monthly Rollup) 5027532 (Security Only) Important Denial of Service 5022732 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C 3.0.6920.8954; 2.0.50727.8970 Maybe None Microsoft .NET Framework 3.5 on Windows Server 2012 R2 5027542 (Monthly Rollup) 5027533 (Security Only) Important Denial of Service 5022733 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C 3.0.6920.8954; 2.0.50727.8970 Maybe None Microsoft .NET Framework 3.5 on Windows Server 2012 R2 (Server Core installation) 5027542 (Monthly Rollup) 5027533 (Security Only) Important Denial of Service 5022733 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C 3.0.6920.8954; 2.0.50727.8970 Maybe None Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 5027540 (Monthly Rollup) 5027531 (Security Only) Important Denial of Service 5022731 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C 3.0.6920.8954; 2.0.50727.8970 Maybe None Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 5027540 (Monthly Rollup) 5027531 (Security Only) Important Denial of Service 5022731 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C 3.0.6920.8954; 2.0.50727.8970 Maybe None Microsoft .NET Framework 4.6.2 on Windows Server 2008 for 32-bit Systems Service Pack 2 5027543 (Monthly Rollup) 5027534 (Security Only) Important Denial of Service 5022731, 5022734 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C 4.7.04043.0 4.7.4050.0 Maybe None Microsoft .NET Framework 4.6.2 on Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 5027543 (Monthly Rollup) 5027534 (Security Only) Important Denial of Service 5022731, 5022734 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C 4.7.04043.0 4.7.4050.0 Maybe None Microsoft .NET Framework 4.6.2 on Windows Server 2008 for x64-based Systems Service Pack 2 5027543 (Monthly Rollup) 5027534 (Security Only) Important Denial of Service 5022731, 5022734 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C 4.7.04043.0 4.7.4050.0 Maybe None Microsoft .NET Framework 4.6.2 on Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 5027543 (Monthly Rollup) 5027534 (Security Only) Important Denial of Service 5022731, 5022734 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C 4.7.04043.0 4.7.4050.0 Maybe None Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 5027540 (Monthly Rollup) 5027531 (Security Only) Important Denial of Service 5022731 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C 4.7.04043.0 4.7.4050.0 Maybe None Microsoft .NET Framework 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) 5027540 (Monthly Rollup) 5027531 (Security Only) Important Denial of Service 5022731 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C 4.7.04043.0 4.7.4050.0 Maybe None Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 5027541 (Monthly Rollup) 5027532 (Security Only) Important Denial of Service 5022732 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C 4.7.04043.0 4.7.4050.0 Maybe None Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 (Server Core installation) 5027541 (Monthly Rollup) 5027532 (Security Only) Important Denial of Service 5022732 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C 4.7.04043.0 4.7.4050.0 Maybe None Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2 5027542 (Monthly Rollup) 5027533 (Security Only) Important Denial of Service 5022733 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C 4.7.04043.0 4.7.4050.0 Maybe None Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2 (Server Core installation) 5027542 (Monthly Rollup) 5027533 (Security Only) Important Denial of Service 5022733 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C 4.7.04043.0 4.7.4050.0 Maybe None Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems 5027123 (Security Update) Important Denial of Service Maybe
Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems 5027123 (Security Update) Important Denial of Service Maybe
Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 5027540 (Monthly Rollup) 5027531 (Security Only) Important Denial of Service 5022731 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C 4.8.4644.0 Maybe None Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 5027540 (Monthly Rollup) 5027531 (Security Only) Important Denial of Service 5022731 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C 4.8.4644.0 Maybe None Microsoft .NET Framework 4.8 on Windows Server 2012 5027541 (Monthly Rollup) 5027532 (Security Only) Important Denial of Service 5022732 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C 4.8.4644.0 Maybe None Microsoft .NET Framework 4.8 on Windows Server 2012 (Server Core installation) 5027541 (Monthly Rollup) 5027532 (Security Only) Important Denial of Service 5022732 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C 4.8.4644.0 Maybe None Microsoft .NET Framework 4.8 on Windows Server 2012 R2 5027542 (Monthly Rollup) 5027533 (Security Only) Important Denial of Service 5022733 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C 4.8.4644.0 Maybe None Microsoft .NET Framework 4.8 on Windows Server 2012 R2 (Server Core installation) 5027542 (Monthly Rollup) 5027533 (Security Only) Important Denial of Service 5022733 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C 4.8.4644.0 Maybe None Microsoft .NET Framework 4.8 on Windows Server 2016 5027123 (Security Update) Important Denial of Service Maybe
Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation) 5027123 (Security Update) Important Denial of Service Maybe
Microsoft Visual Studio 2022 version 17.0 Release Notes (Security Update) Important Denial of Service Maybe
Microsoft Visual Studio 2022 version 17.2 Release Notes (Security Update) Important Denial of Service Maybe
Microsoft Visual Studio 2022 version 17.4 Release Notes (Security Update) Important Denial of Service Maybe
Microsoft Visual Studio 2022 version 17.6 Release Notes (Security Update) Important Denial of Service Maybe
PowerShell 7.2 Release Notes (Security Update) Important Denial of Service Maybe
PowerShell 7.3 Release Notes (Security Update) Important Denial of Service Maybe

Patches

12 patches
Article Type Restart
5027797 Security Update Maybe
5027798 Security Update Maybe
5027230 Security Update Yes
5027219 Security Update Yes
5027536 Security Update Maybe
5027537 Security Update Maybe
5027538 Security Update Maybe
5027539 Security Update Maybe
5027544 Security Update Maybe
5027119 Security Update Maybe
5027123 Security Update Maybe
Release Notes Security Update Maybe

Known Exploits

Acknowledgments

Kevin Jones, GitHub

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