PT-2026-58509 · Microsoft · Windows

CVE-2026-50689 · Published 2026-07-14 · Updated 2026-07-15

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 Windows Clipboard Server allows an authorized attacker to elevate privileges locally. 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 be exploited to execute arbitrary code or gain higher system permissions.

Recommendations Update the system to the July 14 patches.

Fix

Use After Free

Race Condition

Weakness Enumeration

CWE-416

CWE-362

Related Identifiers

CVE-2026-50689

Affected Products

Windows

References · 5

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50689 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-50689 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-50689 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-50689 · Vendor Advisory
• https://twitter.com/windowsforum/status/2077399331200503937 · Twitter Post