PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-69504 Microsoft CVE debrief

An out-of-bounds read vulnerability in Windows NTFS could allow an authorized attacker to disclose information locally. This issue has a CVSS score of 5.5 and is considered medium severity. Multiple Windows versions and server releases are affected, including Windows 10, Windows 11, and Windows Server 2012 through 2025. The vulnerability could allow an attacker to access sensitive information, and affected systems should be patched or updated as soon as possible to prevent potential information disclosure. System administrators and security teams should assess exposure and apply patches or updates from Microsoft, review and update inventory of affected Windows versions and server

Vendor
Microsoft
Product
Windows 10 Version 1607
CVSS
MEDIUM 5.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-08
Original CVE updated
2026-09-14
Advisory published
2026-09-08
Advisory updated
2026-09-14

Who should care

System administrators and security teams responsible for Windows systems, particularly those using Windows 10, Windows 11, and Windows Server releases from 2012 to 2025, should assess exposure and apply patches or updates as soon as possible.

Why it matters

An out-of-bounds read vulnerability in Windows NTFS could allow an authorized attacker to disclose information locally, requiring prompt patching and verification of affected systems.

  • Potential information disclosure
  • Need to verify affected Windows versions and server releases
  • Priority to apply patches or updates from Microsoft
  • Monitoring for potential information disclosure attempts

Technical summary

The vulnerability is an out-of-bounds read issue in Windows NTFS that could allow an authorized attacker to disclose information locally. The CVSS score for this vulnerability is 5.5, indicating medium severity. Affected Windows versions include Windows 10, Windows 11, and Windows Server releases from 2012 to 2025.

Defensive priority

Apply patches or updates from Microsoft as soon as possible to prevent potential information disclosure.

Recommended defensive actions

  • Apply patches or updates from Microsoft
  • Review and update inventory of affected Windows versions and server releases
  • Monitor for potential information disclosure attempts

Evidence notes

The CVE record and NVD vulnerability detail provide information on the affected Windows versions and server releases. Microsoft has released a patch for this vulnerability.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-69504 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-69504

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

  • CVE-2026-69504 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-69504

    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.