Important CVSS 4.9 EPSS 0.03357 📢 Publicly disclosed 2019-03 archive

Executive Summary

An elevation of privilege vulnerability exists in Active Directory Forest trusts due to a default setting that lets an attacker in the trusting forest request delegation of a TGT for an identity from the trusted forest. To exploit this vulnerability, an attacker would first need to compromise an Active Directory forest. An attacker who successfully exploited this vulnerability could request delegation of a TGT for an identity from the trusted forest. This update addresses the vulnerability by ensuring new Active Directory Forest trusts disable TGT delegation by default. The update does not change existing TGT delegation configurations.

Overview

4.9
CVSS MEDIUM
Important
MS Severity
Not Exploited
MS Exploit Status
N/A
MS Exploit Likelihood
Category Elevation of Privilege
Released Mar 12 2019
Last Updated Mar 12 2019
Publicly Disclosed Yes
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.03357 — 0.87149 percentile

CVSS Vector

ATTACK VECTOR
Network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
High
USER INTERACTION
None
SCOPE
Unchanged
Temporal Score: 4.4

EPSS Score

0.03357
probability of exploitation in the next 30 days
0.87149 percentile - updated 2026-06-20
View on FIRST.org

Affected Products

41 affected products
Product KB Article Severity Impact Restart Required
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 Yes
Windows 7 for x64-based Systems Service Pack 1 4507449 (Monthly Rollup) 4507456 (Security Only) Important Elevation of Privilege Yes
Windows 8.1 for 32-bit systems 4507448 (Monthly Rollup) 4507457 (Security Only) Important Elevation of Privilege Yes
Windows 8.1 for x64-based systems 4507448 (Monthly Rollup) 4507457 (Security Only) Important Elevation of Privilege Yes
Windows RT 8.1 4507448 (Monthly Rollup) Important Elevation of Privilege Yes
Windows Server 2008 for 32-bit Systems Service Pack 2 4507452 (Monthly Rollup) 4507461 (Security Only) Important Elevation of Privilege Yes
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 4507452 (Monthly Rollup) 4507461 (Security Only) Important Elevation of Privilege Yes
Windows Server 2008 for Itanium-Based Systems Service Pack 2 4507452 (Monthly Rollup) 4507461 (Security Only) Important Elevation of Privilege Yes
Windows Server 2008 for x64-based Systems Service Pack 2 4507452 (Monthly Rollup) 4507461 (Security Only) Important Elevation of Privilege Yes
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 4507452 (Monthly Rollup) 4507461 (Security Only) Important Elevation of Privilege Yes
Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 4507449 (Monthly Rollup) 4507456 (Security Only) Important Elevation of Privilege Yes
Windows Server 2008 R2 for x64-based Systems Service Pack 1 4507449 (Monthly Rollup) 4507456 (Security Only) Important Elevation of Privilege Yes
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4507449 (Monthly Rollup) 4507456 (Security Only) Important Elevation of Privilege Yes
Windows Server 2012 4507462 (Monthly Rollup) 4507464 (Security Only) Important Elevation of Privilege Yes
Windows Server 2012 (Server Core installation) 4507462 (Monthly Rollup) 4507464 (Security Only) Important Elevation of Privilege Yes
Windows Server 2012 R2 4507448 (Monthly Rollup) 4507457 (Security Only) Important Elevation of Privilege Yes
Windows Server 2012 R2 (Server Core installation) 4507448 (Monthly Rollup) 4507457 (Security Only) Important Elevation of Privilege Yes
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

12 patches
Article Type Restart
4507458 Security Update Yes
4507460 Security Update Yes
4507450 Security Update Yes
4507455 Security Update Yes
4507435 Security Update Yes
4507469 Security Update Yes
4507453 Security Update Yes
4507449 (Monthly Rollup) 4507456 Monthly Rollup Yes
4507448 (Monthly Rollup) 4507457 Monthly Rollup Yes
4507448 Monthly Rollup Yes
4507452 (Monthly Rollup) 4507461 Monthly Rollup Yes
4507462 (Monthly Rollup) 4507464 Monthly Rollup Yes

Known Exploits

Acknowledgments

@harmj0y ) of SpecterOps