PT-2026-2699 · Microsoft · Windows

He Yi Sheng + 3 · Published 2026-01-13 · Updated 2026-01-13 · CVE-2026-20853

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 versions prior to 2026-20853

Description A race condition exists in Windows WalletService due to concurrent execution using a shared resource with improper synchronization. This allows an unauthorized attacker 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

Weakness Enumeration

CWE-362

Related Identifiers

BDU:2026-00371

CVE-2026-20853

Affected Products

Windows

References · 7

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20853 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-20853 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-00371 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-20853 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-20853 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-20853 · Security Note
• https://twitter.com/CVEnew/status/2011181522343342206 · Twitter Post