Vulnerability Report

CVE-2026-68820

CISA KEV Active

Title: CVE-2026-68820

Memory Corruption

Proof Of Concept

PoC Available for CVE-2026-68820

CWE Category CWE-416
Published Date Aug 11, 2026
Modified Date Aug 16, 2026
Exploit Status Available
Score 7.0 CVSS v3.1
Exploit Probability (EPSS)
6.18%

Vulnerability Summary

CVE-2026-68820: Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

Impacted Vendors

M
microsoft 13

Reference Links

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-68820
CVSS v3.1
Source Entity [email protected]
Severity HIGH
7.0
Attack Vector
LOCAL
Complexity
HIGH
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-68820 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/HORKimhab/CVE-2026-68820
View Code
GitHub https://github.com/ubitquity/Windows-WinSock-UAF-Mitigation
View Code
MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector LOCAL
Complexity HIGH
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.