CVE-2026-42991
HighCVSS 7.8Exploitation Probability (EPSS)
Low risk7th percentile - higher than 7% of all known CVEs
Summary
Windows Push Notifications is affected by a race condition vulnerability due to improper synchronization of a shared resource. This allows an authorized attacker to elevate privileges locally.
Risk Assessment
An attacker with existing system access can escalate privileges, potentially leading to full system compromise and access to sensitive data.
Recommendation
Apply the latest Windows security updates and monitor systems for privilege escalation attempts.
Other vulnerabilities in Windows Push Notifications
See all- CVE-2026-62690High
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.
- CVE-2026-50434Medium
Exposure of sensitive information to an unauthorized actor in Windows Push Notifications allows an authorized attacker to disclose information locally.
- CVE-2026-50430Medium
A vulnerability in Windows Push Notifications allows an authorized attacker to disclose sensitive information locally. The issue stems from improper access control to data.
- CVE-2026-50363High
Heap-based buffer overflow in Windows Push Notifications allows an authorized attacker to elevate privileges locally.
- CVE-2026-50339Medium
A vulnerability in Windows Push Notifications allows an authorized attacker to disclose sensitive information locally. The issue stems from improper access control to data.
- CVE-2026-44800High
A race condition in Windows Push Notifications allows an authorized attacker to elevate privileges locally.
- CVE-2026-42979High
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.
- CVE-2026-42978High
A race condition in Windows Push Notifications allows an authorized attacker to elevate privileges locally.
- CVE-2026-42977High
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.
- CVE-2026-42973Medium
Exposure of sensitive information to an unauthorized actor in Windows Push Notifications allows an authorized attacker to disclose information locally.
Original NVD description (English source)
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.