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CVE-2025-21495: mysql enterprise firewall vulnerability
CVE-2025-21495: medium vulnerability affecting mysql enterprise firewall. Check CVSS, KEV status, business impact and recommended administrator actions.
- CVSS
- 4.4 MEDIUM
- EPSS
- 41.52%
- Known exploited
- not in KEV
- Product
- mysql enterprise firewall
What is known
Vulnerability in the MySQL Enterprise Firewall product of Oracle MySQL (component: Firewall). Supported versions that are affected are 8.0.40 and prior, 8.4.3 and prior and 9.1.0 and prior. Difficult to exploit vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Enterprise Firewall. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Enterprise Firewall. CVSS 3.1 Base Score 4.4 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H).
Business impact
Successful exploitation of CVE-2025-21495, a medium vulnerability (CVSS 4.4) affecting mysql enterprise firewall, may affect the confidentiality, integrity or availability of the vulnerable environment. The exact impact depends on the installed version, exposed interfaces and deployment configuration.
Recommended administrator action
Confirm whether mysql enterprise firewall is present and compare installed versions with the vendor advisory and NVD record. Apply the vendor patch or documented mitigation; until remediation is complete, reduce exposure of affected interfaces, review relevant logs and monitor for indicators of exploitation. DataHouse can support version verification, managed patching, network exposure reduction, log review and backup validation for dedicated, cloud and colocated environments.