CVE-2026-68820

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

CVSS v3.1

7.0 HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

6.18% chance of exploitation in the next 30 days, 93th percentile

CISA KEV

added 2026-08-11

Published

2026-08-11

Updated

2026-08-31

Proof-of-concept exploits (2)

• HORKimhab/CVE-2026-688201★ · 2026-08-13
• fevar54/CVE-2026-68820-Mitigation-PoC-0★ · 2026-08-24

References

• CVE Record
• NVD entry

Related

• CVE-2023-21839
• CVE-2023-43654
• CVE-2024-21182
• CVE-2024-3094
• CVE-2024-42461
• CVE-2025-20343