PT-2025-50197 · Microsoft · Windows Shell+1

Published 2025-12-09 · Updated 2025-12-10 · CVE-2025-64661

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

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

Description A flaw in Windows Shell related to concurrent execution using a shared resource with improper synchronization, specifically a race condition, can allow a locally authenticated attacker to gain elevated 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

BDU:2025-15621

CVE-2025-64661

Affected Products

Windows

Windows Shell

References · 7

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-64661 · Security Note
• https://osv.dev/vulnerability/CVE-2025-64661 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-64661 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2025-64661 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-15621 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-64661 · Security Note
• https://twitter.com/CVEnew/status/1998781333124825391 · Twitter Post