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PatchSiren cyber security CVE debrief

CVE-2026-85376 Microsoft CVE debrief

A Windows Print Spooler Components Elevation of Privilege Vulnerability exists, allowing an authorized attacker to elevate privileges locally due to weak authentication. Multiple Windows versions and server releases are affected. The vulnerability impacts Windows infrastructure, requiring defenders to assess exposure and prioritize patching. Affected versions include Windows 10 (1607, 1809, 21H2, 22H2), Windows 11 (23H2, 24H2, 25H2, 26H1, 26H2), and various Windows Server releases (2012, 2012 R2, 2016, 2019, 2022, 2025).

Vendor
Microsoft
Product
Windows 10 Version 1607
CVSS
HIGH 7.8
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 managing Windows infrastructure, especially those with local access concerns, should assess exposure and prioritize patching. This includes IT administrators, security teams, and operators responsible for Windows systems and servers.

Why it matters

CVE-2026-85376 allows local elevation of privileges in Windows Print Spooler Components. Defenders managing Windows infrastructure should assess exposure, prioritize patching, and verify affected versions.

  • Local privilege escalation requires verification
  • Patching is required for affected versions
  • Exposure assessment is necessary for Windows infrastructure

Technical summary

The vulnerability exists in Windows Print Spooler Components, allowing an authorized attacker to elevate privileges locally due to weak authentication. Affected versions include Windows 10 (1607, 1809, 21H2, 22H2), Windows 11 (23H2, 24H2, 25H2, 26H1, 26H2), and various Windows Server releases (2012, 2012 R2, 2016, 2019, 2022, 2025).

Defensive priority

Defenders should prioritize patching affected Windows versions and servers, especially those exposed to local attacks.

Recommended defensive actions

  • Patch affected Windows 10, Windows 11, and Windows Server versions
  • Verify and apply Microsoft's update guide patches
  • Review local attack exposure and limit access to sensitive systems

Evidence notes

The CVE Program and NVD provide official records of the vulnerability. Microsoft offers a patch via their update guide. The vulnerability has been publicly disclosed and requires verification of affected versions. Defenders should review the official CVE record and NVD detail page for further information.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-85376 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-85376

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

  • CVE-2026-85376 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-85376

    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.