CVE-2021-26874
HighCVSS 7.8Exploitation Probability (EPSS)
Elevated risk51th percentile - higher than 51% of all known CVEs
Summary
Windows Overlay Filter Elevation of Privilege Vulnerability.
Risk Assessment
Risk of privilege escalation, potentially allowing an attacker to gain elevated privileges on the system.
Recommendation
Install the security update provided by Microsoft for this vulnerability.
Other vulnerabilities in Windows Overlay Filter
See all- CVE-2026-50435High
Windows Overlay Filter has a buffer over-read vulnerability that allows an authorized attacker to elevate privileges locally.
- CVE-2026-50409Medium
A vulnerability in the Windows Overlay Filter allows an unauthorized actor to disclose sensitive information. This flaw enables an authorized attacker to disclose information locally.
- CVE-2026-54987High
Windows Overlay Filter has a heap-based buffer overflow vulnerability that allows an authorized attacker to elevate privileges locally.
Original NVD description (English source)
Windows Overlay Filter Elevation of Privilege Vulnerability