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CVE-2026-65779 Microsoft CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-11T17:06:53.156Z and has not been modified since then. The vulnerability in Windows Autopilot allows an authorized attacker to elevate privileges locally due to a use-after-free issue. Affected versions include Windows 11 Version 24H2, 25H2, and 26H1. Defenders responsible for Windows 11 environments, especially those using Windows Autopilot, should assess exposure and apply patches to prevent local privilege escalation. The CVE Program record and Microsoft's advisory provide details on the vulnerability.

Vendor
Microsoft
Product
Windows 11 Version 24H2
CVSS
HIGH 7
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-11
Original CVE updated
2026-10-08
Advisory published
2026-08-11
Advisory updated
2026-10-08

Who should care

Defenders responsible for Windows 11 environments, especially those using Windows Autopilot, should assess exposure and apply patches to prevent local privilege escalation.

Why it matters

CVE-2026-65779 is a high-severity vulnerability in Windows Autopilot that allows an authorized attacker to elevate privileges locally. Defenders should prioritize verifying exposure and applying patches to prevent exploitation.

  • Verify exposure in Windows 11 environments to prevent local privilege escalation.
  • Apply patches to affected versions to prevent exploitation.
  • Review inventory to ensure all affected systems are accounted for.

Technical summary

The vulnerability in Windows Autopilot allows an authorized attacker to elevate privileges locally due to a use-after-free issue. Affected versions include Windows 11 Version 24H2, 25H2, and 26H1. The issue arises from improper handling of memory, allowing an attacker to exploit the vulnerability and gain elevated privileges. Defenders should prioritize verifying exposure in Windows 11 environments, especially for versions 24H2, 25H2, and 26H1, and apply patches from Microsoft as soon as possible.

Defensive priority

Defenders should prioritize verifying exposure in Windows 11 environments, especially for versions 24H2, 25H2, and 26H1, and apply patches from Microsoft as soon as possible.

Recommended defensive actions

  • Verify exposure in Windows 11 environments, especially for versions 24H2, 25H2, and 26H1.
  • Apply patches from Microsoft as soon as possible.
  • Review and update inventory to ensure all affected systems are accounted for.

Evidence notes

The CVE record and Microsoft's advisory provide details on the vulnerability in Windows Autopilot, which allows an authorized attacker to elevate privileges locally. The affected versions and patches are specified in the advisory.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-65779 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-65779

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

  • CVE-2026-65779 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-65779

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

Supplemental references

  • Windows Autopilot Elevation of Privilege Vulnerability

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/65xxx/CVE-2026-65779.json

    cve_program_cvelist_v5

  • Source reference

    Unverified legacy reference

    URL: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65779

    Supplemental source - vendor-advisory, patch

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.