CVE-2026-68820

HighCVSS 7.0/10Known exploited (CISA KEV)Last modified Aug 16, 2026

Description

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

Metrics

CVSS 3.1 7.0/10CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-416

Affected software

No affected versions have been published.

Timeline

Published
Aug 11, 2026
Last modified
Aug 16, 2026
Added to CISA KEV
Aug 11, 2026
NVD status
Analyzed

Related CVEs from 2026

CVE-2026-688217.8Improper privilege management in Windows Package Manager allows an authorized attacker to elevate privileges locally.CVE-2026-688239.1Exposed dangerous method or function in Azure Confidential Ledger allows an authorized attacker to execute code over a network.CVE-2026-688247.0Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Connected User Experiences and TelemeCVE-2026-688257.0Use after free in Windows Bind Filter Driver allows an authorized attacker to elevate privileges locally.CVE-2026-688278.0Integer underflow (wrap or wraparound) in Windows GDI+ allows an authorized attacker to elevate privileges over a network.CVE-2026-688288.8Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.CVE-2026-68834.3GitLab has remediated an issue in GitLab EE affecting all versions from 15.7 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 tCVE-2026-688305.5Improper link resolution before file access ('link following') in Windows Universal Plug and Play (UPnP) Device Host allows an authorized atCVE-2026-688315.5Files or directories accessible to external parties in Windows Defender Firewall Service allows an authorized attacker to disclose informatiCVE-2026-688327.8Integer overflow or wraparound in Windows NTFS allows an authorized attacker to elevate privileges locally.CVE-2026-688336.8Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code with a physical attack.CVE-2026-688348.0Stack-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges over a network.
CVE-2026-68820: High severity, CVSS 7.0 | Vulnix