CVE-2026-42991

Public PoC / Exploit

No public PoC or exploit code indexed for this CVE.

Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.

Description

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.

CVSS Vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Weaknesses (CWE)

CWE-362CWE-416

Affected Products (19)

microsoft · windows_10_1809 (up to 10.0.17763.8880)vulnerable

microsoft · windows_10_21h2 (up to 10.0.19044.7417)vulnerable

microsoft · windows_10_22h2 (up to 10.0.19045.7417)vulnerable

References (1)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42991

Vendor Advisory