PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-85815 Microsoft CVE debrief

A Windows Device Association Service Information Disclosure Vulnerability exists, allowing an authorized attacker to disclose information locally due to an out-of-bounds read in the Windows Device Association Service. This vulnerability affects Windows systems, particularly those managing Windows 10, Windows 11, and Windows Server installations. Defenders should assess exposure and apply patches. The CVE Program and NVD provide official records of the vulnerability, and Microsoft has released a patch.

Vendor
Microsoft
Product
Windows 10 Version 1607
CVSS
MEDIUM 5.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-13
Original CVE updated
2026-10-13
Advisory published
2026-10-13
Advisory updated
2026-10-13

Who should care

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

Why it matters

CVE-2026-85815 is a Windows Device Association Service Information Disclosure Vulnerability. Defenders should verify and apply patches, review system configurations, and monitor for potential information disclosure incidents.

  • Verify patches are applied to prevent information disclosure
  • Review access controls to limit authorized access
  • Monitor system logs for potential information disclosure incidents
  • Conduct regular vulnerability assessments

Technical summary

The Windows Device Association Service has an out-of-bounds read vulnerability, allowing an authorized attacker to disclose information locally. This vulnerability affects Windows 10, Windows 11, and Windows Server installations. Defenders should prioritize verifying and applying patches for affected Windows versions, reviewing system configurations, and monitoring for potential information disclosure incidents.

Defensive priority

Defenders should prioritize verifying and applying patches for affected Windows versions, reviewing system configurations, and monitoring for potential information disclosure incidents.

Recommended defensive actions

  • Verify and apply patches for affected Windows versions
  • Review system configurations to ensure proper access controls
  • Monitor for potential information disclosure incidents
  • Conduct regular vulnerability assessments and penetration testing

Evidence notes

The CVE Program and NVD provide official records of the vulnerability. Microsoft has released a patch for the vulnerability. The vulnerability has been publicly disclosed and defenders should verify and apply patches, review system configurations, and monitor for potential information disclosure incidents. The source item details and Microsoft security update guide also provide relevant information.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-85815 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-85815

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

  • CVE-2026-85815 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-85815

    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.