Oracle MySQL Server up to 9.3.0 Optimizer improper authorization

Summaryinfo

A vulnerability classified as critical has been found in Oracle MySQL Server up to 9.3.0. Impacted is an unknown function of the component Optimizer. Performing a manipulation results in improper authorization. This vulnerability is reported as CVE-2025-50095. The attack is possible to be carried out remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Oracle MySQL Server up to 9.3.0. This affects some unknown processing of the component Optimizer. The manipulation with an unknown input leads to a improper authorization vulnerability. CWE is classifying the issue as CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on availability. The summary by CVE is:

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 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).

The advisory is shared at oracle.com. This vulnerability is uniquely identified as CVE-2025-50095 since 06/12/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. Additional levels of successful authentication are required for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/02/2025). MITRE ATT&CK project uses the attack technique T1548.002 for this issue.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2025-1567). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

• Red Hat Enterprise Linux
• Oracle MySQL
• Ubuntu Linux
• Oracle Linux
• RESF Rocky Linux
• Xerox FreeFlow Print Server

Productinfo

Type

• Database Software

Vendor

• Oracle

Name

• MySQL Server

Version

• 9.0
• 9.1
• 9.2
• 9.3.0

License

• open-source

Website

• Vendor: https://www.oracle.com

CPE 2.3info

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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