- High 7.0
- Known exploited (CISA KEV)
CVE-2026-68820
Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
Scores
The facts
- Published
- 11 August 2026
- Last changed
- 16 August 2026
- NVD status
- Analyzed
- Severity
- High, CVSS 7.0 out of 10 (version 3.1)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- Affects
- microsoft windows 10 1607
- microsoft windows 10 1809
- microsoft windows 10 21h2
- microsoft windows 10 22h2
- microsoft windows 11 23h2
- Known exploited
- Yes. CISA added it to the Known Exploited Vulnerabilities catalogue on 11 August 2026.
- EPSS
- 0.3% chance of exploitation activity in the next 30 days (percentile 25).
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