CVE-2025-53040: Medium severity Oracle MySQL Server vulnerability
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.0-8.0.43, 8.4.0-8.4.6 and 9.0.0-9.4.0. 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).
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Oracle MySQL (Server: Optimizer)to a version that resolves this vulnerability.Fixed in 8.0.43 - Upgrade
Upgrade
Oracle MySQL (Server: Optimizer)to a version that resolves this vulnerability.Fixed in 8.4.6 - Upgrade
Upgrade
Oracle MySQL (Server: Optimizer)to a version that resolves this vulnerability.Fixed in 9.4.0 - Compensating control
Since successful exploitation can cause hang or frequently repeatable crash (complete DOS) of MySQL Server, place network/ACL protections in front of MySQL to restrict who can reach the MySQL service (network access required) until the vulnerable Oracle MySQL versions are upgraded.
Event History
Frequently Asked Questions
What is the severity of CVE-2025-53040?
CVE-2025-53040 has been designated as easily exploitable and poses a significant risk to affected Oracle MySQL Server versions.
How do I fix CVE-2025-53040?
To fix CVE-2025-53040, you should upgrade your Oracle MySQL Server to version 8.0.44 or later, or 8.4.7 or later, or 9.4.1 or later.
Which versions of Oracle MySQL Server are affected by CVE-2025-53040?
CVE-2025-53040 affects Oracle MySQL Server versions from 8.0.0 to 8.0.43, 8.4.0 to 8.4.6, and 9.0.0 to 9.4.0.
Who can exploit CVE-2025-53040?
CVE-2025-53040 can be exploited by high privileged attackers who have network access via multiple protocols.
What component of Oracle MySQL is affected by CVE-2025-53040?
CVE-2025-53040 specifically affects the Optimizer component of the MySQL Server product.