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CVE-2026-68820

high · 7Actively exploited

On the CISA Known Exploited Vulnerabilities catalog

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.

Added 2026-08-11Remediation due 2026-08-25

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

7
CVSS
0.3%
EPSS (exploit prob.)
24th
EPSS percentile
2026-08-11
Published

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

Weaknesses

CWE-416

Affected products

VendorProductAffected versions
microsoftwindows_10_1607< 10.0.14393.9418
microsoftwindows_10_1607< 10.0.14393.9418
microsoftwindows_10_1809< 10.0.17763.9115
microsoftwindows_10_1809< 10.0.17763.9115
microsoftwindows_10_21h2< 10.0.19044.7663
microsoftwindows_10_22h2< 10.0.19045.7663
microsoftwindows_11_23h2< 10.0.22631.7517
microsoftwindows_11_24h2< 10.0.26100.9106
microsoftwindows_11_25h2< 10.0.26200.9106
microsoftwindows_11_26h1< 10.0.28000.2704
microsoftwindows_server_2012all versions
microsoftwindows_server_2012r2
microsoftwindows_server_2016< 10.0.14393.9418
microsoftwindows_server_2019< 10.0.17763.9115
microsoftwindows_server_2022< 10.0.20348.5440
microsoftwindows_server_2025< 10.0.26100.33222

Check a specific version with /api/v1/cve/match.

References

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-68820