CVE-2025-30685: Medium severity Oracle MySQL Server vulnerability
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Replication). Supported versions that are affected are 8.0.0-8.0.41, 8.4.0-8.4.4 and 9.0.0-9.2.0. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 8.0.42-1 - Compensating control
Mitigate availability impact by limiting network access to MySQL Server (e.g., restrict inbound connections so only required clients/protocols can reach the MySQL Server port), since the issue is reachable over the network and can cause hang/crash (DoS).
Event History
Frequently Asked Questions
What is the severity of CVE-2025-30685?
CVE-2025-30685 is considered a high severity vulnerability due to its potential for exploitation by high privileged attackers.
How do I fix CVE-2025-30685?
To fix CVE-2025-30685, upgrade your MySQL Server to a version that does not include the vulnerability, specifically versions beyond 8.0.41, 8.4.4, or 9.2.0.
What versions of MySQL Server are affected by CVE-2025-30685?
CVE-2025-30685 affects MySQL Server versions 8.0.0 to 8.0.41, 8.4.0 to 8.4.4, and 9.0.0 to 9.2.0.
What types of attacks can exploit CVE-2025-30685?
CVE-2025-30685 can be exploited by high privileged attackers with network access using multiple protocols.
Is CVE-2025-30685 present in older versions of MySQL Server?
CVE-2025-30685 does not affect older versions of MySQL Server prior to 8.0.0.