Oracle MySQL Server up to 8.0.39/8.4.2/9.0.1 DDL improper authorization

Summaryinfo

A vulnerability was found in Oracle MySQL Server up to 8.0.39/8.4.2/9.0.1. It has been rated as critical. Affected by this vulnerability is an unknown functionality of the component DDL. This manipulation causes improper authorization. This vulnerability is handled as CVE-2025-21525. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Oracle MySQL Server up to 8.0.39/8.4.2/9.0.1. It has been declared as critical. Affected by this vulnerability is an unknown function of the component DDL. 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. The summary by CVE is:

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: DDL). Supported versions that are affected are 8.0.39 and prior, 8.4.2 and prior and 9.0.1 and prior. 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).

It is possible to read the advisory at oracle.com. This vulnerability is known as CVE-2025-21525 since 12/25/2024. The exploitation appears to be easy. The attack can be launched remotely. The exploitation needs additional levels of successful authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/09/2026). The attack technique deployed by this issue is T1548.002 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 216473 (RHEL 9 : mysql (RHSA-2025:1671)), 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 (216473) and CERT Bund (WID-SEC-2025-0167). Be aware that VulDB is the high quality source for vulnerability data.

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 Server

Version

• 8.0.0
• 8.0.1
• 8.0.2
• 8.0.3
• 8.0.4
• 8.0.5
• 8.0.6
• 8.0.7
• 8.0.8
• 8.0.9
• 8.0.10
• 8.0.11
• 8.0.12
• 8.0.13
• 8.0.14
• 8.0.15
• 8.0.16
• 8.0.17
• 8.0.18
• 8.0.19
• 8.0.20
• 8.0.21
• 8.0.22
• 8.0.23
• 8.0.24
• 8.0.25
• 8.0.26
• 8.0.27
• 8.0.28
• 8.0.29
• 8.0.30
• 8.0.31
• 8.0.32
• 8.0.33
• 8.0.34
• 8.0.35
• 8.0.36
• 8.0.37
• 8.0.38
• 8.0.39
• 8.4.0
• 8.4.1
• 8.4.2
• 9.0.0
• 9.0.1

License

• open-source

Website

• Vendor: https://www.oracle.com

CPE 2.3info

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Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

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