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CVE-2026-68820 Details
Description
Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Aug 6, 2026Exploitation: ActiveAutomatable: NoTechnical Impact: Total
References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-68820 | CISA-ADP | US Government Resource |
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-68820 | [email protected] | PatchVendor Advisory |
This CVE is in CISA's Known Exploited Vulnerabilities Catalog
Reference CISA's BOD 22-01 and Known Exploited Vulnerabilities Catalog for further guidance and requirements.
| Vulnerability Name | Date Added | Due Date | Required Action |
|---|---|---|---|
| Microsoft Windows Ancillary Function Driver for WinSock Use-After-Free Vulnerability | Aug 11, 2026 | Aug 25, 2026 | Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-416 | Use After Free | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| microsoft windows 10 1607 | < 10.0.14393.9418 |
CPE
Remediation
| |
| microsoft windows 10 1809 | < 10.0.17763.9115 |
CPE
Remediation
| |
| microsoft windows 10 21h2 | < 10.0.19044.7663 |
CPE
Remediation
| |
| microsoft windows 10 22h2 | < 10.0.19045.7663 |
CPE
Remediation
| |
| microsoft windows 11 23h2 | < 10.0.22631.7517 |
CPE
Remediation
| |
| microsoft windows 11 24h2 | < 10.0.26100.9106 |
CPE
Remediation
| |
| microsoft windows 11 25h2 | < 10.0.26200.9106 |
CPE
Remediation
| |
| microsoft windows 11 26h1 | < 10.0.28000.2704 |
CPE
Remediation
| |
| microsoft windows server 2012 | r2 |
CPE
Remediation
| |
| microsoft windows server 2016 | < 10.0.14393.9418 |
CPE
Remediation
| |
| microsoft windows server 2019 | < 10.0.17763.9115 |
CPE
Remediation
| |
| microsoft windows server 2022 | < 10.0.20348.5440 |
CPE
Remediation
| |
| microsoft windows server 2025 | < 10.0.26100.33222 |
CPE
Remediation
| |
Change History
7 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 16, 2026 | CVE Modified | [email protected] |
| Aug 12, 2026 | Initial Analysis | [email protected] |
| Aug 12, 2026 | CVE Modified | CISA-ADP |
| Aug 11, 2026 | CVE Modified | [email protected] |
| Aug 11, 2026 | CVE CISA KEV Update | Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government |
| Aug 11, 2026 | CVE Modified | CISA-ADP |
| Aug 11, 2026 | New CVE Received | [email protected] |