Search/CVE-2026-68820
● CVE — High

CVE-2026-68820

VendormicrosoftProductwindows server 2012, windows 10 1607, windows 10 1809, windows 10 21h2, windows 10 22h2, windows 11 24h2, windows 11 25h2, windows 11 26h1, windows server 2016, windows server 2019, windows server 2022, windows server 2025, windows 11 23h2DiscoveredAug 11, 2026UpdatedOct 26, 2026

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

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CVSS v3.1
7 HIGH
EPSS
8.57%
probability of exploitation in 30 days
CISA KEV
Listed
confirmed active exploitation
News coverage
6
sources referencing this CVE
Related IOCs
0
seen in the same coverage
Intelligence Reports14
14 intelligence reports available

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EPSS Trend
Aug 26, 2026 → Oct 31, 2026
▲ 2.38pp
6.18% → 8.57% over 3 tracked changes
CVSS v3.1 Detail
Attack VectorLOCAL
Attack ComplexityHIGH
Privileges RequiredLOW
User InteractionNONE
ScopeUNCHANGED
ConfidentialityHIGH
IntegrityHIGH
AvailabilityHIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Connections
21 relationships
Timeline
disclosure → media coverage
Aug 11, 2026
Disclosure — published as a CVE record. · last revised by NVD Oct 26, 2026
Aug 11, 2026
advisories.ncsc.nl reports: NCSC-2026-0284 [1.00] [M/H] Kwetsbaarheden verholpen in Microsoft Windows
Aug 11, 2026
thehackernews.com reports: Microsoft Patches 398 Flaws Including a Windows Driver Zero-Day Under Active Attack
Aug 12, 2026
helpnetsecurity.com reports: Microsoft patches 400+ vulnerabilities, one zero-day under attack (CVE-2026-68820)
Aug 12, 2026
bleepingcomputer.com reports: Lazarus hackers exploited Windows zero-day to target defense firms
Aug 17, 2026
research.checkpoint.com reports: 17th August – Threat Intelligence Report
Oct 27, 2026
thehackernews.com reports: Lazarus Abuses South Korean Security Software to Deploy Malware Using Post-Quantum Encryption
Public PoC (4)
github.com/HORKimhab/CVE-2026-68820github.com/ubitquity/Windows-WinSock-UAF-Mitigationgithub.com/fevar54/CVE-2026-68820-Mitigation-PoC-github.com/maxprog-svg/CVE-2026-68820_Mass_Exploit
Unverified third-party code — review before executing.