PT-2026-58406 · Microsoft · Windows

Published 2026-07-14 · Updated 2026-07-15 · CVE-2026-50427

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

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

Description A use after free issue in the Content Delivery Manager allows an authorized local attacker to elevate privileges. Use after free is a memory corruption flaw that occurs when an application continues to use a pointer after it has been freed, which can lead to arbitrary code execution or privilege escalation.

Recommendations Deploy KB5101650 and verify the OS build to ensure the fix is applied.

Fix

Use After Free

Race Condition

Weakness Enumeration

CWE-416

CWE-362

Related Identifiers

CVE-2026-50427

Affected Products

Windows

References · 5

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50427 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-50427 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-50427 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-50427 · Vendor Advisory
• https://twitter.com/windowsforum/status/2077317785311469766 · Twitter Post