CVE-2026-20810
High · 7.8CVSS
7.8
EPSS
0.5%
Published
Jan 13, 2026
CISA due date
—
The record
Free of memory not on the heap in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|