PT-2026-58360 · Microsoft · Windows Key Guard

Published 2026-07-14 · Updated 2026-07-15 · CVE-2026-50378

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 Key Guard (affected versions not specified)

Description A race condition exists in Windows Key Guard, where concurrent execution using a shared resource with improper synchronization allows an authorized local attacker to elevate privileges.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Race Condition

Weakness Enumeration

CWE-362

Related Identifiers

CVE-2026-50378

Affected Products

Windows Key Guard

References · 5

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50378 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-50378 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-50378 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-50378 · Security Note
• https://twitter.com/windowsforum/status/2077300670361661825 · Twitter Post