Improper input validation in MySQL Server - CVE-2025-30681

Vulnerability identifier: #VU107555

CSH Severity: Low

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

CVE-ID: CVE-2025-30681

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

Affected software:
MySQL Server
MySQL Cluster
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
Anolis OS
openEuler
Ubuntu
mecab
mysql-selinux (Red Hat package)
mecab-ipadic-EUCJP
mecab-ipadic
mysql-server-8.0 (Ubuntu package)
mysql-devel
mysql-test
mysql-server
mysql-libs
mysql-help
mysql-errmsg
mysql-debugsource
mysql-debuginfo
mysql-config
mysql-common
mysql
mysql (Red Hat package)
mysql-server (Ubuntu package)
mysql8.4 (Red Hat package)

The vulnerability allows a remote privileged user to perform service disruption.

The vulnerability exists due to improper input validation within the Server: Replication component in MySQL Server. A remote privileged user can exploit this vulnerability to perform service disruption.

Install updates from vendor's website.

• https://www.oracle.com/security-alerts/cpuapr2025.html