Uncontrolled resource consumption in Oracle MySQL Connectors
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- Low · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-400.
Summary
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).
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2025-21548
- 2026-10-03 Alias added: GHSA-5cvp-4pwp-rvg8
References
Advisory 1
More Oracle Mysql Connector/python vulnerabilities
- TI-2024-13882 Vulnerability in the MySQL Connectors product of Oracle MySQL (component… CVSS 3.1HIGH 7.5
- TI-2016-04864 Unspecified vulnerability in the MySQL Connector component 2.1.3 and earlier and 2.0.4… CVSS 3.0MEDIUM 5.6
- TI-2024-13960 Vulnerability in the MySQL Connectors product of Oracle MySQL (component… CVSS 3.1MEDIUM 6.3
- TI-2025-21987 Improper access control in Oracle MySQL Connectors CVSS 3.1MEDIUM 4.8
Sources
- CVE-2025-21548 · CVE Program
- CVE-2025-21548 · NVD
- FIRST EPSS
- GHSA-5cvp-4pwp-rvg8 · GitHub Advisory Database · CC BY 4.0
- CVE-2025-21548 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences