Improper input validation in MySQL Server - CVE-2025-21495

Vulnerability identifier: #VU103200

CSH Severity: Low

CVSS v4: 5.9 [CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2025-21495

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote privileged user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation within the Firewall component in MySQL Enterprise Firewall. A remote privileged user can exploit this vulnerability to perform a denial of service (DoS) attack.

MySQL Server
MySQL Enterprise Firewall
openEuler
Dell EMC Storage Monitoring and Reporting (SMR)
Storage Resource Manager
mysql-debuginfo
mysql-debugsource
mysql-devel
mysql-errmsg
mysql-help
mysql-libs
mysql-server
mysql-test
mysql-config
mysql-common
mysql

Install updates from vendor's website.

MySQL Server - addressed in versions 8.0.41, 8.4.4, 9.2.0
MySQL Enterprise Firewall - addressed in versions 8.0.41, 8.4.4, 9.2.0
Dell EMC Storage Monitoring and Reporting (SMR) - addressed in versions 5.0.2.2, 5.1.0.0
Storage Resource Manager - addressed in versions 5.0.2.2, 5.1.0.0
mysql-debuginfo - update to 8.0.41-1
mysql-debugsource - update to 8.0.41-1
mysql-devel - update to 8.0.41-1
mysql-errmsg - update to 8.0.41-1
mysql-help - update to 8.0.41-1
mysql-libs - update to 8.0.41-1
mysql-server - update to 8.0.41-1
mysql-test - update to 8.0.41-1
mysql-config - update to 8.0.41-1
mysql-common - update to 8.0.41-1
mysql - update to 8.0.41-1

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

• Multiple vulnerabilities in MySQL Server
• openEuler update for mysql
• Multiple vulnerabilities in Dell Storage Resource Manager (SRM) and Dell Storage Monitoring and Reporting (SMR)
• Multiple vulnerabilities in Dell Storage Resource Manager (SRM) and Dell Storage Monitoring and Reporting (SMR)
• Improper input validation in MySQL Enterprise Firewall