Denial of Service Vulnerability in MySQL Server by Oracle
CVE-2025-53045

4.9MEDIUM

Key Information:

Vendor

Oracle
Status
Mysql Server
Vendor
CVE Published:
21 October 2025

What is CVE-2025-53045?

A vulnerability in Oracle's MySQL Server, specifically within the InnoDB component, allows attackers with high privileges and network access to exploit this security flaw. Affected versions include 8.0.0 through 8.0.43, 8.4.0 through 8.4.6, and 9.0.0 through 9.4.0. Successful exploitation can result in repeated crashes or hangs of the MySQL Server, effectively causing a denial of service and impacting service availability.

Affected Version(s)

MySQL Server 8.0.0 <= 8.0.43

MySQL Server 8.4.0 <= 8.4.6

MySQL Server 9.0.0 <= 9.4.0

References

https://www.oracle.com/security-alerts/cpuoct2025.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

JSON
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CVE-2025-53045 : Denial of Service Vulnerability in MySQL Server by Oracle