Oracle MySQL Server up to 9.3.0 LDAP Auth improper authorization

Summaryinfo

A vulnerability was found in Oracle MySQL Server up to 9.3.0. It has been declared as critical. Affected by this issue is some unknown functionality of the component LDAP Auth. Executing a manipulation can lead to improper authorization. The identification of this vulnerability is CVE-2025-50103. The attack may be launched remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Oracle MySQL Server up to 9.3.0. This vulnerability affects some unknown processing of the component LDAP Auth. The manipulation with an unknown input leads to a improper authorization vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect availability. CVE summarizes:

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: LDAP Auth). Supported versions that are affected are 9.0.0-9.3.0. Difficult to exploit 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 4.4 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H).

The advisory is shared for download at oracle.com. This vulnerability was named CVE-2025-50103 since 06/12/2025. The exploitation appears to be easy. The attack can be initiated remotely. Additional levels of successful authentication are needed for exploitation. 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.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at EUVD (EUVD-2025-21477) 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

• 9.0
• 9.1
• 9.2
• 9.3.0

License

• open-source

Website

• Vendor: https://www.oracle.com

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

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

Discussion