CVE-2026-21952: Medium severity Oracle MySQL Server vulnerability
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Parser). Supported versions that are affected are 9.0.0-9.5.0. 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
Event History
Frequently Asked Questions
What is the severity of CVE-2026-21952?
CVE-2026-21952 is classified as a high-severity vulnerability due to its potential for allowing privileged access to the MySQL Server.
How do I fix CVE-2026-21952?
To fix CVE-2026-21952, upgrade your MySQL Server to a version beyond 9.5.0.
What are the affected versions for CVE-2026-21952?
CVE-2026-21952 affects Oracle MySQL versions 9.0.0 through 9.5.0.
Who is at risk for CVE-2026-21952?
High privileged attackers with network access may exploit CVE-2026-21952.
What component of Oracle MySQL does CVE-2026-21952 affect?
CVE-2026-21952 affects the Server: Parser component of the Oracle MySQL product.