PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-85812 Microsoft CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-10-13T19:00:06.539Z and has not been modified since then. The NVD entry is currently 5.5 MEDIUM. This vulnerability affects Windows 10 Version 21H2, Windows 10 Version 22H2, Windows 11 version 23H2, Windows 11 Version 23H2, Windows 11 Version 24H2, Windows 11 Version 25H2, Windows 11 version 26H1, Windows 11 Version 26H2, Windows Server 2022, Windows Server 2025, and Windows Server 2025 (Server Core installation). Defenders should verify exposure, assess potential impacts, and prioritize remediation in Windows 10 and Windows 11 systems, especially those with external parties' .

Vendor
Microsoft
Product
Windows 10 Version 21H2
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 10 and Windows 11 systems, especially those with external parties accessing files or directories, should assess exposure and prioritize verification and potential remediation.

Why it matters

The Windows Bind Filter Driver Information Disclosure Vulnerability requires defenders to verify exposure, assess potential impacts, and prioritize remediation in Windows 10 and Windows 11 systems.

  • Defenders need to verify exposure in Windows 10 and Windows 11 systems.
  • Potential information disclosure requires assessment and possible remediation.
  • System logs should be monitored for potential information disclosure attempts.
  • Patch or workaround implementation may be necessary based on specific Windows versions and configurations.

Technical summary

The Windows Bind Filter Driver Information Disclosure Vulnerability allows an authorized attacker to disclose information locally. Affected products include Windows 10 Version 21H2, Windows 10 Version 22H2, Windows 11 version 23H2, Windows 11 Version 23H2, Windows 11 Version 24H2, Windows 11 Version 25H2, Windows 11 version 26H1, Windows 11 Version 26H2, Windows Server 2022, Windows Server 2025, and Windows Server 2025 (Server Core installation).

Defensive priority

Defenders should prioritize verifying exposure in Windows 10 and Windows 11 systems, especially those with external parties accessing files or directories.

Recommended defensive actions

  • Verify exposure in Windows 10 and Windows 11 systems, especially those with external parties accessing files or directories.
  • Assess the need for patches or workarounds based on the specific Windows versions and configurations in use.
  • Monitor system logs for potential information disclosure attempts.

Evidence notes

The CVE Program record and NVD vulnerability detail provide information on the Windows Bind Filter Driver Information Disclosure Vulnerability. Microsoft's advisory is referenced as a supplemental source.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-85812 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-85812

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

  • CVE-2026-85812 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-85812

    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.