Skip to main content
← All vulnerabilities
CVE-2026-85880

Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability

Published
Last modified
published
Listed in CISA KEV
Fix
Fixed in 10.0.14393.9512, 10.0.17763.9245, 10.0.19044.7725, 10.0.19045.7725, 6.2.9200.26349, and 2 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: active
  • Automatable: no
  • Technical impact: total

Summary

Microsoft Windows is affected by this vulnerability in its Advanced Local Procedure Call (ALPC) component. A local attacker with existing authorized access to the system could exploit it to gain higher privileges than intended.

Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.

Read the original description

Heap-based buffer overflow in Windows ALPC allows an authorized attacker to elevate privileges locally.

Timeline

  1. CISA SSVC assessment

    Exploitation: active · Automatable: no · Technical impact: total

  2. Added to CISA KEV

    CISA has evidence of exploitation in the wild

  3. CVE published
  4. CISA remediation deadline

    Due date for US federal agencies to patch

  5. Record last updated

Affected versions

  • Microsoft Windows 10 Version 1607

    From 10.0.14393.0 · fixed in 10.0.14393.9512

  • Microsoft Windows 10 Version 1809

    From 10.0.17763.0 · fixed in 10.0.17763.9245

  • Microsoft Windows 10 Version 21H2

    From 10.0.19044.0 · fixed in 10.0.19044.7725

  • Microsoft Windows 10 Version 22H2

    From 10.0.19045.0 · fixed in 10.0.19045.7725

  • Microsoft Windows Server 2012

    From 6.2.9200.0 · fixed in 6.2.9200.26349

  • Microsoft Windows Server 2012 (Server Core installation)

    From 6.2.9200.0 · fixed in 6.2.9200.26349

  • Microsoft Windows Server 2012 R2

    From 6.3.9600.0 · fixed in 6.3.9600.23398

  • Microsoft Windows Server 2012 R2 (Server Core installation)

    From 6.3.9600.0 · fixed in 6.3.9600.23398

  • Microsoft Windows Server 2016

    From 10.0.14393.0 · fixed in 10.0.14393.9512

  • Microsoft Windows Server 2016 (Server Core installation)

    From 10.0.14393.0 · fixed in 10.0.14393.9512

  • Microsoft Windows Server 2019

    From 10.0.17763.0 · fixed in 10.0.17763.9245

  • Microsoft Windows Server 2019 (Server Core installation)

    From 10.0.17763.0 · fixed in 10.0.17763.9245

  • Microsoft Windows Server 2022

    From 10.0.20348.0 · fixed in 10.0.20348.5622

References 1

msrc.microsoft.com