Skip to main content

Mondoo

Vulnerability Management
Technology
Services

Solutions

Financial Services
Manufacturing
Healthcare

Resources

Blog
Vulnerability Database
Documentation
GitHub

Company

About
Careers
Partners
Contact

Legal

Privacy
Terms
Imprint

© 2026 Mondoo, Inc.

Log in Get Assessment

Vulnerability IntelligenceMICROSOFT-CVE-2026-42911

MICROSOFT-CVE-2026-42911

HIGH7.0

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Published Jun 9, 2026

Modified 1 weeks ago

Details

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

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42911

CVSS Analysis

CVSS v2.0

7.0

Upstream

Ecosystems

Timeline

PublishedJun 9, 2026

ModifiedJun 9, 2026

MICROSOFT-CVE-2026-42911 | Mondoo Vulnerability Intelligence