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CVE-2026-20930

HIGH CVSS 3.1: 7.8
Updated Apr 17, 2026
Concurrent
Parameter Value
CVSS 7.8 (HIGH)
Type CWE-362 (Race Condition)
Vendor Concurrent
Public PoC No

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

Attack Parameters

Attack Vector
Local
Requires local access
Attack Complexity
High
Difficult to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Weakness Type (CWE)