CVE-2026-72955: Windows Application Compatibility Cache Elevation of Privilege Vulnerability
Use after free in Windows Application Compatibility Cache allows an authorized attacker to elevate privileges locally.
Other sources
Windows Application Compatibility Cache Elevation of Privilege Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.28000.3231Patch KB5127646 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.22631.7652Patch KB5126653 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26300.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26200.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.33650Patch KB5126646 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.20348.5761Patch KB5126655
Event History
Frequently Asked Questions
Who is exposed to this vulnerability?
Systems running the affected Microsoft Windows 11, Windows Server 2022, or Windows Server 2025 products are in scope. Exploitation is local, so the attacker must be able to run code on the target system.
What level of access does an attacker need?
The attacker must already be authorized on the affected machine and have low privileges. No user interaction is required for exploitation.
What could a successful exploit allow?
Successful exploitation could allow elevation of privilege and affect the confidentiality, integrity, and availability of the affected system.
Is remote exploitation indicated by the available information?
No. The provided attack vector is local, indicating that exploitation requires local access rather than network-based access.