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PatchSiren cyber security CVE debrief

CVE-2026-96925 Microsoft CVE debrief

An integer underflow vulnerability exists in Windows NTFS, allowing an authorized local attacker to disclose information. Multiple Windows versions are affected, including Windows 10, Windows 11, and Windows Server editions. This vulnerability has a medium severity level and requires immediate attention from system administrators and security teams. The vulnerability can be exploited locally, and an attacker can gain access to sensitive information. Microsoft has released patches for the affected systems, and it is essential to apply these patches as soon as possible.

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
2026-10-14
Advisory published
2026-10-13
Advisory updated
2026-10-14

Who should care

System administrators and security teams responsible for Windows systems, particularly those with local access to affected systems, should prioritize patching and monitoring for potential exploitation attempts. These teams should review system configurations, verify updates, and ensure that compensating controls are in place for exposed systems.

Why it matters

CVE-2026-96925 is a medium-severity vulnerability in Windows NTFS that allows local information disclosure. System administrators and security teams should prioritize patching affected systems and monitoring for potential exploitation attempts.

  • Potential information disclosure from vulnerable systems
  • Requires verification of system configurations and updates
  • Monitoring for potential local exploitation attempts

Technical summary

An integer underflow vulnerability exists in Windows NTFS, allowing an authorized local attacker to disclose information. The vulnerability affects multiple Windows versions, including Windows 10, Windows 11, and Windows Server editions. Microsoft has released patches for the affected systems.

Defensive priority

Medium priority due to local attack vector and potential for information disclosure

Recommended defensive actions

  • Apply patches from Microsoft for affected Windows versions
  • Verify system configurations and update vulnerable systems
  • Monitor for potential local exploitation attempts

Evidence notes

The CVE Program and NVD provide official records of the vulnerability. Microsoft has released a patch for the issue. The vulnerability affects multiple Windows versions, including Windows 10, Windows 11, and Windows Server editions. There is no evidence of public exploitation, but defenders should verify system configurations and updates. The official CVE record and NVD vulnerability detail provide more information on the vulnerability.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-96925 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-96925

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

  • CVE-2026-96925 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-96925

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

Supplemental references

  • Windows NTFS Information Disclosure Vulnerability

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/96xxx/CVE-2026-96925.json

    cve_program_cvelist_v5

  • Source reference

    Unverified legacy reference

    URL: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96925

    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.