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Vulnerabilities

Vulnerability · CVE-2025-59254

Heap-based buffer overflow in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

Published Oct 14, 2025 · catalog updated Feb 22, 2026 · Microsoft Windows 11 version 22H2

Last checked Oct 29, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-59254. EPSS is 1.11%. Act only if a listed version of Microsoft Windows 11 version 22H2 is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High7.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
1.11%
Remediation
Version ranges on file
Affected products
vendor Microsoft Windows 11 version 22H2 10.0.22621.0 <10.0.22621.6060

Heap-based buffer overflow in Windows DWM Core Library 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 22H2 10.0.22621.0 <10.0.22621.606010.0.22621.0 <10.0.22621.6060

How to fix CVE-2025-59254

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-2025-59254. EPSS is 1.11%. Act only if a listed version of Microsoft Windows 11 version 22H2 is installed.

Which versions are affected?

Compare what you have installed with Microsoft Windows 11 version 22H2 10.0.22621.0 <10.0.22621.6060 10.0.22621.0 <10.0.22621.6060. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 1.11%. There is no CISA KEV listing. A public exploit reference is linked in Sources. That is not the same as confirmed exploitation. 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 14, 2025 · EUVD

    Detected

    Heap-based buffer overflow in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

  2. Feb 22, 2026 · EUVD

    Updated

    Heap-based buffer overflow in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

Sources

  • CVE.orgVulnerability recordCVE-2025-59254

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-59254

    30-day exploitation probability 1.11%

    first.org
  • EUVDVulnerability recordEUVD-2025-34374

    Heap-based buffer overflow in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

    euvd.enisa.europa.eu
  • Exploit DatabasePublic exploit reference52493

    Public exploit archive reference. This is not confirmation of exploitation. The exploit body is not stored here.

    exploit-db.com

References

Freshness

Last verified in this catalog Oct 29, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • Exploit DatabaseOct 27, 2026
  • CVE.orgOct 23, 2026
  • FIRST EPSSOct 23, 2026
  • EUVDOct 23, 2026