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Vulnerabilities

Vulnerability · CVE-2026-72969

Windows Program Compatibility Assistant Service Elevation of Privilege Vulnerability

Published Oct 13, 2026 · catalog updated Oct 27, 2026 · Microsoft Windows 11 version 23H2

Last checked Nov 4, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-72969. EPSS is 0.30%. Act only if a listed version of Microsoft Windows 11 version 23H2 is installed.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High7.0
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.30%
Remediation
Advisory link
Affected products
vendor Microsoft Windows 11 Version 23H2 · vendor Microsoft Windows 11 Version 24H2 · vendor Microsoft Windows 11 Version 25H2 · vendor Microsoft Windows 11 Version 26H2 · vendor Microsoft Windows 11 version 23H2 · vendor Microsoft Windows 11 version 26H1

Use after free in Windows Program Compatibility Assistant Service allows an authorized attacker to elevate privileges locally.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Microsoft Windows 11 Version 23H2version unspecified
  • vendor Microsoft Windows 11 Version 24H2version unspecified
  • vendor Microsoft Windows 11 Version 25H2version unspecified
  • vendor Microsoft Windows 11 Version 26H2version unspecified
  • vendor Microsoft Windows 11 version 23H2version unspecified
  • vendor Microsoft Windows 11 version 26H1version unspecified
  • vendor Microsoft Windows Server 2022version unspecified
  • vendor Microsoft Windows Server 2025version unspecified

How to fix CVE-2026-72969

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-72969. EPSS is 0.30%. Act only if a listed version of Microsoft Windows 11 version 23H2 is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-416: Use After Free. EPSS 0.30%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Windows security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 13, 2026 · CIRCL Vulnerability Lookup

    Detected

    Use after free in Windows Program Compatibility Assistant Service allows an authorized attacker to elevate privileges locally.

  2. Oct 27, 2026 · CIRCL Vulnerability Lookup

    Updated

    Use after free in Windows Program Compatibility Assistant Service allows an authorized attacker to elevate privileges locally.

Sources

References

Freshness

Last verified in this catalog Nov 4, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 4, 2026
  • CVE.orgOct 28, 2026
  • CIRCL Vulnerability LookupOct 28, 2026