CVE

CVE-2026-68820

Microsoft Windows Ancillary Function Driver for WinSock Use-After-Free Vulnerability

Microsoft · Windows Ancillary Function Driver for WinSock

Date added (CISA)

2026-08-11

Remediation due

2026-08-25

Known ransomware use

Not indicated

Remediation priority

P2 — past CISA due date

Associated with

Related to

Lazarus Group (TraderTraitor cluster) / APT38 / BlueNoroff · SPECTREcampaignCorrelated cluster2026-09-16
payload · XMRigcampaignCorrelated cluster2026-09-03
FudModulecampaignCorrelated cluster2026-09-03
JSCealcampaignCorrelated cluster2026-09-02
Trojanized PDF softwarecampaignCorrelated cluster2026-08-17
LegacyHivecampaignCorrelated cluster2026-08-11
CVE-2026-68820campaignCorrelated cluster2026-08-11
CVE-2026-68820campaignCorrelated cluster2026-08-11

Description

Microsoft Windows Ancillary Function Driver for WinSock contains a use-after-free vulnerability that allows an authorized attacker to elevate privileges locally.

Source: NVD ↗ · CISA KEV Catalog ↗