CVE-2025-50101

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.0-8.0.42, 8.4.0-8.4.5 and 9.0.0-9.3.0. 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).

A moderate severity vulnerability was found in the Optimizer component of the MySQL Server product of Oracle MySQL. An easily exploitable flaw, it allows a high privileged attacker with network access via multiple protocols to cause a hang or frequently repeatable crash, resulting in a complete denial of service of the MySQL server. Only availability is impacted; confidentiality and integrity are not affected (CVSS 3.1 base score 4.9, CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H). The mysql packages in Red Hat Enterprise Linux 8, 9, and 10 are affected, and a fix is being pursued for these releases through the standard Red Hat update process. The mysql package in Red Hat Enterprise Linux 6 Extended Life Cycle Support is not affected because the vulnerable code is not present. The mysql packages in Fedora and Red Hat In-Vehicle OS are also tracked as affected, with handling delegated to those products' update processes. The Red Hat impact rating of Moderate is consistent with the upstream Oracle severity assessment of 4.9.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability. Oracle addressed this issue in the July 2025 Critical Patch Update for MySQL Server, and fixes for affected Red Hat products are delivered through their respective update processes.