peter bassill · operator
$ cve CVE-2026-68820 JSON

CVE-2026-68820 KEV

7.0
HIGH · CVSS 3.1 · EPSS 0.3% (pctl 24)

Patch first

On CISA KEV — known exploited in the wild, due 2026-08-25.

Description

Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

Scoring

CVSS7.0 (HIGH, v3.1)
VectorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS0.33% — more likely to be exploited than 24% of all CVEs
WeaknessCWE-416
On CISA KEVyes — remediate by 2026-08-25
Public exploitnone known
Published2026-08-11
Last modified2026-08-16

CISA KEV

NameMicrosoft Windows Ancillary Function Driver for WinSock Use-After-Free Vulnerability
Added2026-08-11
Due2026-08-25
Vendor / productMicrosoft / Windows Ancillary Function Driver for WinSock
Ransomware usenone reported

Affected (13)

VendorProduct
microsoftwindows 10 1607
microsoftwindows 10 1809
microsoftwindows 10 21h2
microsoftwindows 10 22h2
microsoftwindows 11 23h2
microsoftwindows 11 24h2
microsoftwindows 11 25h2
microsoftwindows 11 26h1
microsoftwindows server 2012
microsoftwindows server 2016
microsoftwindows server 2019
microsoftwindows server 2022
microsoftwindows server 2025

References

→ the Explorer  ·  watch your stack  ·  NVD