CVE-2025-21503: Medium severity Oracle MySQL Server vulnerability
Last updated 30 January 2025
Other sources
Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). 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 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 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/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 versions of MySQL are affected by CVE-2025-21503?
CVE-2025-21503 affects MySQL versions 8.0.40 and prior, 8.4.3 and prior, and 9.1.0 and prior.
What is the risk associated with CVE-2025-21503?
CVE-2025-21503 is considered easily exploitable and allows a high privileged attacker with network access to compromise affected systems.
How do I fix CVE-2025-21503?
To fix CVE-2025-21503, upgrade to MySQL version 8.0.41-2 or later.
Is there a patch available for CVE-2025-21503?
Yes, patches to address CVE-2025-21503 are included in the MySQL versions released after the vulnerable versions.
What component of MySQL is impacted by CVE-2025-21503?
CVE-2025-21503 impacts the InnoDB component of the MySQL Server product.