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PatchSiren cyber security CVE debrief

CVE-2026-85911 Microsoft CVE debrief

The Windows StateRepository API Elevation of Privilege Vulnerability is a use-after-free issue that allows an authorized attacker to elevate privileges locally. This vulnerability affects Windows 10, Windows 11, and Windows Server systems. Defenders should assess exposure and apply patches to prevent potential elevation of privilege attacks. The CVE record was published on 2026-10-13T19:01:02.535Z and has not been modified since then. The NVD entry is currently 7.8 HIGH. The vulnerability requires defenders to verify exposure, apply patches, and monitor for potential exploitation attempts.

Vendor
Microsoft
Product
Windows 10 Version 1809
CVSS
HIGH 7.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-13
Original CVE updated
2026-10-14
Advisory published
2026-10-13
Advisory updated
2026-10-14

Who should care

Defenders responsible for Windows systems, particularly those using Windows 10, Windows 11, and Windows Server, should assess exposure and apply patches.

Why it matters

The Windows StateRepository API Elevation of Privilege Vulnerability requires defenders to verify exposure, apply patches, and monitor for potential exploitation attempts to prevent elevation of privilege attacks.

  • Verify and apply patches to prevent potential elevation of privilege
  • Assess and remediate affected systems to prevent exploitation
  • Monitor for potential exploitation attempts to detect possible attacks

Technical summary

The Windows StateRepository API Elevation of Privilege Vulnerability allows an authorized attacker to elevate privileges locally due to a use-after-free issue in the Windows StateRepository API. This vulnerability affects Windows 10, Windows 11, and Windows Server systems. Defenders should prioritize verifying exposure and applying patches to prevent potential elevation of privilege attacks.

Defensive priority

Defenders should prioritize verifying exposure and applying patches for Windows StateRepository API Elevation of Privilege Vulnerability.

Recommended defensive actions

  • Verify exposure by checking Windows versions and applying patches
  • Assess and remediate affected systems
  • Monitor for potential exploitation attempts

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, but additional information on exploitation and impact is limited. There is no evidence of exploitation in the wild, but defenders should verify exposure and apply patches as a precautionary measure. The Windows StateRepository API Elevation of Privilege Vulnerability has a CVSS score of 7.8 and a severity rating of HIGH.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-85911 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-85911

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-85911 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-85911

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.