PT-2026-58372 · Microsoft · Windows Server 2025+1

Published 2026-07-14 · Updated 2026-07-15 · CVE-2026-50392

Positive Technologies (AI Summary)

CVSS v3.1

7.0

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Windows 11 (affected versions not specified) Windows Server 2025 (affected versions not specified)

Description A use-after-free issue exists in the Windows Secure Kernel Mode. This flaw allows an authorized attacker to perform a local privilege escalation, which is the act of gaining higher-level permissions than those originally assigned to the user.

Recommendations Update Windows 11 to the latest patched version. Update Windows Server 2025 to the latest patched version.

Fix

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

CVE-2026-50392

Affected Products

Windows 11

Windows Server 2025

References · 3

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50392 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-50392 · Security Note
• https://twitter.com/windowsforum/status/2077258144829354111 · Twitter Post