CVE-2026-68820
Last modified
CVE-2026-68820 is a high-severity vulnerability rated 7/10 on the CVSS scale. Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.. CISA has confirmed active exploitation in the wild. EPSS estimates a 0.36% chance of exploitation in the next 30 days.
Description
Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
Metrics
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitation Status
This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by .
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 1607 | < 10.0.14393.9418 |
| Microsoft | Windows 10 1809 | < 10.0.17763.9115 |
| Microsoft | Windows 10 21h2 | < 10.0.19044.7663 |
| Microsoft | Windows 10 22h2 | < 10.0.19045.7663 |
| Microsoft | Windows 11 23h2 | < 10.0.22631.7517 |
| Microsoft | Windows 11 24h2 | < 10.0.26100.9106 |
| Microsoft | Windows 11 25h2 | < 10.0.26200.9106 |
| Microsoft | Windows 11 26h1 | < 10.0.28000.2704 |
| Microsoft | Windows Server 2012 | All versions |
| Microsoft | Windows Server 2012 | r2 |
| Microsoft | Windows Server 2016 | < 10.0.14393.9418 |
| Microsoft | Windows Server 2019 | < 10.0.17763.9115 |
| Microsoft | Windows Server 2022 | < 10.0.20348.5440 |
| Microsoft | Windows Server 2025 | < 10.0.26100.33222 |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-68820Patch, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-68820US Government Resource
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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