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PatchSiren cyber security CVE debrief

CVE-2026-85336 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 impacts Windows systems, particularly those managing Windows 10, Windows 11, and Windows Server environments. Defenders should assess exposure and prioritize patching or compensating controls. The vulnerability allows local information disclosure, may lead to unauthorized access to sensitive data, and requires verification of affected versions and application of patches or compensating controls. It may necessitate monitoring for suspicious local to

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 environments, should assess exposure and prioritize patching or compensating controls.

Why it matters

CVE-2026-85336 is a medium-severity vulnerability in Windows Device Association Service that allows local information disclosure. Defenders should verify exposure, prioritize patching, and implement compensating controls as needed.

  • Local information disclosure may lead to unauthorized access to sensitive data.
  • Requires verification of affected versions and application of patches or compensating controls.
  • May necessitate monitoring for suspicious local activity indicative of exploitation attempts.

Technical summary

The Windows Device Association Service Information Disclosure Vulnerability (CVE-2026-85336) is caused by an out-of-bounds read in the Windows Device Association Service. This vulnerability allows an authorized attacker to disclose information locally. Affected products include various versions of Windows 10, Windows 11, and Windows Server.

Defensive priority

Defenders should prioritize verifying and applying patches from Microsoft, as the vulnerability allows local information disclosure and may require compensating controls until official fixes are applied.

Recommended defensive actions

  • Verify and apply patches from Microsoft for the Windows Device Association Service Information Disclosure Vulnerability.
  • Conduct inventory checks to identify affected Windows versions and configurations.
  • Implement compensating controls to monitor and limit local information disclosure until official fixes are applied.

Evidence notes

The CVE Program and NVD provide official records of the vulnerability. Microsoft's advisory indicates a patch is available. Affected versions and configurations are detailed in the CVE and NVD records.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-85336 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-85336

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

  • CVE-2026-85336 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-85336

    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.