HIGH CISA KEV

CVE-2026-68820

CVSS v3

HIGH

EPSS Score

—

exploit probability

CISA KEV

Yes

known exploited

Exploitation

—

SSVC status

Description

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

CISA Known Exploited Vulnerability

Date Added: 8/11/2026
Patch Due Date: 8/25/2026
Ransomware Use: Unknown

Technical details

CVSS v3 Vector: 3.1
Published: 8/11/2026
Last Modified: 8/12/2026
CERT-FR Advisory: CERTFR-2026-AVI-1001
CERT-FR Link: CERTFR-2026-AVI-1001

Frequently asked questions

What is CVE-2026-68820?

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

Is CVE-2026-68820 actively exploited?

Yes. CVE-2026-68820 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 8/25/2026.

What is the CVSS score for CVE-2026-68820?

CVE-2026-68820 has a CVSS v3 base score of 7 (HIGH severity), with vector string 3.1.

Is CVE-2026-68820 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

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