CVE-2025-21500: Medium severity ORACLE MySQL Server vulnerability
Last updated 30 January 2025
Other sources
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.40 and prior, 8.4.3 and prior and 9.1.0 and prior. Easily exploitable vulnerability allows low 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 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
— NVD
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/mysql-8.0to a version that resolves this vulnerability.Fixed in 8.0.42-1
Event History
Frequently Asked Questions
What is the severity of CVE-2025-21500?
CVE-2025-21500 is considered an easily exploitable vulnerability that allows attackers with low privileges and network access to the MySQL Server.
Which versions are affected by CVE-2025-21500?
CVE-2025-21500 affects MySQL Server versions 8.0.40 and prior, 8.4.3 and prior, and 9.1.0 and prior.
How do I fix CVE-2025-21500?
To fix CVE-2025-21500, upgrade MySQL Server to version 8.0.41-2 or higher.
What components are impacted by CVE-2025-21500?
CVE-2025-21500 impacts the Server: Optimizer component of the MySQL Server product.
Is authentication needed to exploit CVE-2025-21500?
No, CVE-2025-21500 can be exploited by low privileged attackers without the need for authentication.