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Servers and applications

CVE-2025-21521

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Thread Pooling). Supported versions that are affected are 8.0.39 and prior, 8.4.2 and prior and 9.0.1 and prior. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized…

Severity
High 7.5
Published
21 Jan 2025
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Sources
NVD

Affected software

SoftwareAffected versions
MySQLServers and applications · cpe:a:oracle:mysql_server
  • From 8.0.0 up to 8.0.39
  • From 8.4.0 up to 8.4.2
  • From 9.0.0 up to 9.0.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-21521
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-21521