CVE-2026-85880
Microsoft · Published September 8, 2026
7.8
CVSS v3.1
HIGHCISA KEV — Federal agencies must patch by deadline
Actively exploited in the wild
Patch availableGet patch
Description
Heap-based buffer overflow in Windows ALPC allows an authorized attacker to elevate privileges locally.
Affected Products
- Windows 10 1607 < 10.0.14393.9512
- Windows 10 1809 < 10.0.17763.9245
- Windows 10 21h2 < 10.0.19044.7725
- Windows 10 22h2 < 10.0.19045.7725
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H