PT-2026-2693 · Microsoft · Windows

Published 2026-01-13 · Updated 2026-01-15 · CVE-2026-20844

Positive Technologies (AI Summary)

CVSS v3.1

7.4

High

Base vector

AV:L/AC:H/PR:N/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 flaw exists in the Windows Clipboard Server that could allow an attacker to gain higher-level access to a system. This issue involves a use-after-free condition. An attacker could exploit this to elevate privileges locally.

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

Race Condition

Use After Free

Weakness Enumeration

CWE-362

CWE-416

Related Identifiers

BDU:2026-00532

CVE-2026-20844

Affected Products

Windows

References · 7

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-20844 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-20844 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-00532 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-20844 · Security Note
• https://osv.dev/vulnerability/CVE-2026-20844 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20844 · Vendor Advisory
• https://twitter.com/CVEnew/status/2011759673687343423 · Twitter Post