Vulnerability in MySQL Server Product by Oracle
CVE-2025-50091

4.9MEDIUM

Key Information:

Vendor

Oracle
Status
Mysql Server
Vendor
CVE Published:
15 July 2025

What is CVE-2025-50091?

An exploitable vulnerability exists within the MySQL Server component of Oracle MySQL, specifically affecting versions 8.0.0 to 8.0.42, 8.4.0 to 8.4.5, and 9.0.0 to 9.3.0. Attackers with network access and high privileges can exploit this flaw through various protocols, enabling them to cause the MySQL Server to hang or crash repeatedly. This denial of service has the potential to disrupt database availability and severely impact operations. It is imperative for users to assess their systems and apply recommended security measures to mitigate the risks associated with this vulnerability.

Affected Version(s)

MySQL Server 8.0.0 <= 8.0.42

MySQL Server 8.4.0 <= 8.4.5

MySQL Server 9.0.0 <= 9.3.0

References

https://www.oracle.com/security-alerts/cpujul2025.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

.