// CVE

CVE-2026-68820

High 7.0 Exploited (KEV)

Microsoft Windows 10 Version 1607

7.0CVSS
9%EPSS
YesCISA KEV

Summary

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

Published: 2026-08-11 · In KEV since: 2026-08-11

Analysis

🔴 Critical — actively exploited

Weakness: Use After Free (CWE-416). Uses freed memory; can lead to code execution.

How it's exploited: Exploitable with local access to the host, with low privileges, no user interaction, with high complexity.

Impact: Full compromise (confidentiality, integrity and availability).

Status: Active exploitation confirmed by CISA (KEV).

How to defend:
  • Patch now: it is in CISA's actively-exploited catalog (KEV), with a deadline.
  • Detect: turn this CVE into detection rules.

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

The vector encodes how it's exploited (translated above, in the analysis). Break it down in the CVSS tool →

🔗 NVD record CISA KEV 🌉 CVE → detection 🎯 Am I exposed? ⚖️ Prioritize patch

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Sources: CISA KEV · EPSS · FIRST.org · NVD. Analysis derived from the CVSS vector and exploitation status (no AI). Informational; always verify against the vendor's official advisory.