Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-20921

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows an authorized attacker to elevate privileges over a network.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 16.4%
CVSS Severity
CVSS v3 Score 7.5
Products affected by CVE-2026-20921


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