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PatchSiren cyber security CVE debrief

CVE-2026-65780 Microsoft CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-11T17:06:53.620Z and has not been modified since then. This vulnerability, CVE-2026-65780, is a high-severity elevation of privilege issue in Windows Autopilot. It allows an authorized attacker to elevate privileges locally due to a double free vulnerability. Defenders responsible for Windows 11 systems, especially those using Autopilot, should assess exposure and prioritize patching. The CVE record and NVD entry provide details on the vulnerability, but additional information on exploitation or impact is limited.

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 systems, especially those using Autopilot, should assess exposure and prioritize patching. This includes verifying exposure of Windows 11 systems using Autopilot and applying patches as available from Microsoft. Security teams and vulnerability management teams should also review the vulnerability details and plan for remediation.

Why it matters

CVE-2026-65780 is a high-severity elevation of privilege vulnerability in Windows Autopilot. Defenders should prioritize verifying exposure and applying patches to prevent potential exploitation.

  • Verify exposure of Windows 11 systems using Autopilot
  • Potential elevation of privileges by authorized attackers
  • Need for patching to prevent exploitation

Technical summary

A double free vulnerability in Windows Autopilot allows an authorized attacker to elevate privileges locally. This vulnerability, CVE-2026-65780, has a high CVSS score of 7, indicating a high severity level. The vulnerability affects Windows 11 systems using Autopilot. Defenders should prioritize verifying exposure and applying patches to prevent potential exploitation.

Defensive priority

Defenders should prioritize verifying exposure of Windows 11 systems, especially those using Autopilot, and apply patches as available.

Recommended defensive actions

  • Verify exposure of Windows 11 systems using Autopilot
  • Apply patches as available from Microsoft
  • Monitor system logs for potential exploitation attempts

Evidence notes

The CVE record and NVD entry provide details on the vulnerability. However, additional information on exploitation or impact is limited. Defenders should verify exposure of Windows 11 systems using Autopilot and apply patches as available from Microsoft. The vulnerability has a high CVSS score of 7 and is classified as HIGH severity. There is no information on known exploitation or ransomware campaign use.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-65780 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-65780

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

  • CVE-2026-65780 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-65780

    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-2026-65780.json

    cve_program_cvelist_v5

  • Source reference

    Unverified legacy reference

    URL: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65780

    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.