mysql: Thread Pooling unspecified vulnerability (CPU Jan 2026)
CVSS v3
4.9
MEDIUM
EPSS Score
0.0%
exploit probability
CISA KEV
No
known exploited
Exploitation
none
SSVC status
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Thread Pooling). Supported versions that are affected are 8.0.0-8.0.44, 8.4.0-8.4.7 and 9.0.0-9.5.0. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Av
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Thread Pooling). Supported versions that are affected are 8.0.0-8.0.44, 8.4.0-8.4.7 and 9.0.0-9.5.0. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Av
Active exploitation of CVE-2026-21964 has not been confirmed. The EPSS score is 0.0%, indicating the estimated probability of exploitation in the next 30 days.
CVE-2026-21964 has a CVSS v3 base score of 4.9 (MEDIUM severity), with vector string 3.1.
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