MySQL Server Vulnerability in Oracle MySQL Affects Multiple Versions
CVE-2025-21555

5.5MEDIUM

Key Information:

Vendor

Oracle
Status
Mysql Server
Vendor
CVE Published:
21 January 2025

What is CVE-2025-21555?

A vulnerability in Oracle's MySQL Server, specifically in the InnoDB component, allows a highly privileged attacker to exploit the database over network protocols. This could lead to significant disruptions, including the potential for continuous crashes of MySQL Server. Additionally, an attacker could gain unauthorized privileges to update, insert, or delete data, posing serious risks to data integrity and availability. Affected versions include 8.0.40 and earlier, 8.4.3 and earlier, and 9.1.0 and earlier. Mitigation is essential to protect against these vulnerabilities.

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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:
5.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
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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