Oracle MySQL Connectors up to 9.1.0 improper authorization

Summaryinfo

A vulnerability marked as critical has been reported in Oracle MySQL Connectors up to 9.1.0. Affected by this issue is some unknown functionality. Performing a manipulation results in improper authorization. This vulnerability is identified as CVE-2025-21548. The attack can be initiated remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Oracle MySQL Connectors up to 9.1.0. It has been classified as critical. This affects an unknown code. 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 confidentiality, integrity, and availability. The summary by CVE is:

Vulnerability in the MySQL Connectors product of Oracle MySQL (component: Connector/Python). Supported versions that are affected are 9.1.0 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Connectors. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all MySQL Connectors accessible data as well as unauthorized read access to a subset of MySQL Connectors accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Connectors. CVSS 3.1 Base Score 6.4 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:H/A:H).

The advisory is shared at oracle.com. This vulnerability is uniquely identified as CVE-2025-21548 since 12/25/2024. The exploitability is told to be easy. It is possible to initiate the attack remotely. The exploitation needs additional levels of successful authentication. 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 01/09/2026). MITRE ATT&CK project uses the attack technique T1548.002 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 214521 (Oracle MySQL Connectors (January 2025 CPU)), 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 (214521) and CERT Bund (WID-SEC-2025-0167). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

• Oracle MySQL
• Debian Linux
• Red Hat Enterprise Linux
• Ubuntu Linux
• SUSE Linux
• Oracle Linux
• NetApp ActiveIQ Unified Manager
• RESF Rocky Linux
• MariaDB MariaDB

Productinfo

Type

• Database Software

Vendor

• Oracle

Name

• MySQL Connectors

Version

• 9.0
• 9.1.0

License

• commercial

Website

• Vendor: https://www.oracle.com

CPE 2.3info

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CPE 2.2info

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Entryinfo

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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