CVE-2025-21543
Last modified
CVE-2025-21543 is a medium-severity vulnerability rated 4.9/10 on the CVSS scale. Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Packaging). Supported versions that are affected are 8.0.40 and prior, 8.4.3 and prior and 9.1.0 and prior. EPSS estimates a 0.83% chance of exploitation in the next 30 days.
Description
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Packaging). 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 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).
Metrics
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Oracle | Mysql Cluster | >= 7.6.0, <= 7.6.32 |
| Oracle | Mysql Cluster | >= 8.0.0, <= 8.0.40 |
| Oracle | Mysql Cluster | >= 8.4.0, <= 8.4.3 |
| Oracle | Mysql Cluster | >= 9.0.0, <= 9.1.0 |
| Oracle | Mysql Server | >= 8.0.0, <= 8.0.40 |
| Oracle | Mysql Server | >= 8.4.0, <= 8.4.3 |
| Oracle | Mysql Server | >= 9.0.0, <= 9.1.0 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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