Denial of Service Vulnerability in Oracle MySQL Server
CVE-2025-21500

6.5MEDIUM

Key Information:

Vendor

Oracle
Status
Mysql Server
Vendor
CVE Published:
21 January 2025

What is CVE-2025-21500?

A vulnerability exists within the Oracle MySQL Server, particularly in the Optimizer component. Low privileged attackers with network access can exploit this issue via multiple protocols. Successful exploitation can lead to unauthorized actions that cause the MySQL Server to hang or frequently crash, resulting in a complete denial of service. Affected versions include 8.0.40 and earlier, 8.4.3 and earlier, and 9.1.0 and earlier. For further details, see the Oracle Advisory.

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Affected Version(s)

MySQL Server * <= 8.0.40

MySQL Server * <= 8.4.3

MySQL Server * <= 9.1.0

References

https://www.oracle.com/security-alerts/cpujan2025.html
vendor-advisory

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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