Oracle MySQL Server 8.0.42/8.4.5/9.3.0 DDL improper authorization

Summaryinfo

A vulnerability described as critical has been identified in Oracle MySQL Server 8.0.42/8.4.5/9.3.0. This issue affects some unknown processing of the component DDL. Such manipulation leads to improper authorization. This vulnerability is documented as CVE-2025-50094. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Oracle MySQL Server 8.0.42/8.4.5/9.3.0. Affected by this issue is an unknown code block of the component DDL. The manipulation with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability. CVE summarizes:

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: DDL). Supported versions that are affected are 8.0.42, 8.4.5 and 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 for download at oracle.com. This vulnerability is handled as CVE-2025-50094 since 06/12/2025. The exploitation is known to be easy. The attack may be launched remotely. The exploitation needs additional levels of successful authentication. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 12/02/2025). The MITRE ATT&CK project declares the attack technique as T1548.002.

The vulnerability scanner Nessus provides a plugin with the ID 253482 (TencentOS Server 4: mysql (TSSA-2025:0613)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (253482) and CERT Bund (WID-SEC-2025-1567). VulDB is the best source for vulnerability data and more expert information about this specific topic.

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

• 8.0.42
• 8.4.5
• 9.3.0

License

• open-source

Website

• Vendor: https://www.oracle.com

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VulDB is the best source for vulnerability data and more expert information about this specific topic.

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