CVE-2026-20877
HighCVSS 7.8Exploitation Probability (EPSS)
Low risk22th percentile - higher than 22% of all known CVEs
Summary
A use-after-free vulnerability exists in Windows Management Services. This allows an authorized attacker to elevate privileges locally.
Risk Assessment
An attacker could exploit this flaw to execute code with elevated privileges, risking system integrity.
Recommendation
Apply the security patch from the Windows vendor.
Other vulnerabilities in Windows Management Services
See all- CVE-2026-70348Medium
Improper link resolution before file access ('link following') in Windows Management Services allows an authorized attacker to deny service locally.
- CVE-2026-58544High
Use-After-Free vulnerability in Windows Management Services. Allows an authorized attacker to elevate privileges locally.
- CVE-2026-20924High
A use-after-free vulnerability in Windows Management Services allows an authorized attacker to elevate privileges locally.
- CVE-2026-20923High
A use-after-free vulnerability in Windows Management Services allows an authorized attacker to elevate privileges locally.
- CVE-2026-20918High
A race condition exists in Windows Management Services due to improper synchronization of shared resources. This allows an authorized attacker to elevate privileges locally.
- CVE-2026-20874High
A race condition exists in Windows Management Services due to improper synchronization of shared resources. This allows an authorized attacker to elevate privileges locally.
- CVE-2026-20873High
A race condition exists in Windows Management Services due to improper synchronization of shared resources. This allows an authorized attacker to elevate privileges locally.
- CVE-2026-20867High
A race condition exists in Windows Management Services due to improper synchronization of shared resources. This allows an authorized attacker to elevate privileges locally.
- CVE-2026-20866High
A race condition exists in Windows Management Services due to improper synchronization of shared resources. This allows an authorized attacker to elevate privileges locally.
- CVE-2026-20865High
A use-after-free vulnerability in Windows Management Services allows an authorized attacker to elevate privileges locally.
Original NVD description (English source)
Use after free in Windows Management Services allows an authorized attacker to elevate privileges locally.