Denial of Service Vulnerability in Oracle MySQL Server
CVE-2025-21523

4.9MEDIUM

Key Information:

Vendor

Oracle
Status
Mysql Server
Vendor
CVE Published:
21 January 2025

What is CVE-2025-21523?

A vulnerability exists within Oracle's MySQL Server that allows a high-privileged attacker with network access to exploit weaknesses through multiple protocols. This situation can lead to a denial of service by causing the MySQL Server to hang or crash repeatedly. Affected versions include MySQL Server 8.0.40 and earlier, 8.4.3 and earlier, as well as 9.1.0 and earlier. Organizations should ensure prompt updates and mitigation strategies to protect against potential disruptions in service.

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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:
4.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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