CVE-2025-50099

Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). 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 impact denial of service vulnerability was found in the InnoDB component of MySQL. An easily exploitable flaw allows a highly privileged attacker with network access via multiple protocols to compromise MySQL Server; successful attacks can result in a hang or frequently repeatable crash (complete denial of service) of MySQL Server. Only availability is impacted; confidentiality and integrity are not affected. Upstream reports that MySQL Server versions 8.0.0-8.0.42, 8.4.0-8.4.5, and 9.0.0-9.3.0 are affected. Red Hat rated this flaw Moderate impact with a CVSS 3.1 base score of 4.9 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H), consistent with the upstream Oracle assessment.

The mysql components in Red Hat Enterprise Linux 8, 9, and 10 (including the mysql:8.0 and mysql:8.4 module streams and the mysql8.4 component) are affected, and a fix is being pursued through the delegated resolution channels with updated packages delivered via the respective update streams. The mysql package in Red Hat Enterprise Linux 6 Extended Lifecycle Support is not affected because the vulnerable code is not present. The Red Hat In-Vehicle OS stream is delegated and has been assessed as not affected by the platform team. For Fedora, updates for the mysql8.0 and mysql8.4 packages are deferred; the fix is available in Rawhide, and users of stable Fedora releases remain exposed to a denial of service by a highly privileged database user until updated packages become available.

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. Updated mysql packages that address this flaw have been released for the affected Red Hat Enterprise Linux releases through their respective update streams, and users are advised to update to the latest available packages. For Fedora, the fix is currently available only in Rawhide.