CVE-2025-21546 Missing authorization in MySQL Server
High-privileged attackers can bypass privilege checks to read and modify unauthorized data in MySQL Server.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-21546?
CVE-2025-21546 is a low-severity missing authorization vulnerability in Oracle Mysql Server, published on 21 Jan 2025. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: Privileges). Supported versions that are affected are 8.0.40 and prior, 8.4.3 and prior and 9.1.0 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 update, insert or delete access to some of MySQL Server accessible data as well as unauthorized read access to a subset of MySQL Server accessible data. CVSS 3.1 Base Score 3.8 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N).
Weakness: CWE-863
Which versions are affected by CVE-2025-21546?
It affects 1 product.
Products include Oracle Mysql Server.
How do I fix CVE-2025-21546?
Apply the vendor's patch.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2025-21546 being exploited?
There is no known exploitation of CVE-2025-21546 in the wild and no public exploit code.
Other vulnerabilities in Oracle Mysql Server
Sources
Also known as GHSA-gw84-4qc8-q6cv, MINI-7fr6-f5q4-49wr, MINI-7m2x-3xhw-vwpc, MINI-j6qx-86x5-637q, UBUNTU-CVE-2025-21546.