CVE-2025-21548 Denial of service in MySQL Connectors
High-privileged attackers can cause crashes and modify data in MySQL Connector/Python via network access, requiring user interaction.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-21548?
CVE-2025-21548 is a medium-severity denial of service vulnerability in Oracle Corporation MySQL Connectors, published on 21 Jan 2025. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
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).
Weakness: CWE-400
Which versions are affected by CVE-2025-21548?
It affects 1 product.
Products include Oracle Mysql Connector\/Python.
How do I fix CVE-2025-21548?
No fix has been published for CVE-2025-21548 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-21548 being exploited?
There is no known exploitation of CVE-2025-21548 in the wild and no public exploit code.
Other vulnerabilities in Oracle Corporation MySQL Connectors
Sources
Also known as GHSA-5cvp-4pwp-rvg8, UBUNTU-CVE-2025-21548.