CVE-2025-21494: Medium severity Oracle MySQL Server vulnerability
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: Privileges). Supported versions that are affected are 8.0.39 and prior, 8.4.2 and prior and 9.0.1 and prior. Difficult to exploit vulnerability allows high privileged attacker with logon to the infrastructure where MySQL Server executes 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 4.1 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H).
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-21494?
CVE-2025-21494 is classified as a difficult to exploit vulnerability that affects multiple supported versions of MySQL Server.
How do I fix CVE-2025-21494?
To fix CVE-2025-21494, upgrade your MySQL Server to version 8.0.40, 8.4.3, or 9.0.2 or later.
Which versions of MySQL Server are affected by CVE-2025-21494?
CVE-2025-21494 affects MySQL Server versions 8.0.39 and prior, 8.4.2 and prior, and 9.0.1 and prior.
Who can exploit CVE-2025-21494?
CVE-2025-21494 can be exploited by high privileged attackers who are logged on to the infrastructure.
What component of MySQL Server is impacted by CVE-2025-21494?
CVE-2025-21494 impacts the Security Privileges component of MySQL Server.