Description
Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Connection Handling). Supported versions that are affected are MySQL Server: 8.4.0-8.4.9, 9.0.0-9.7.0; MySQL Cluster: 8.0.11-8.0.46, 8.4.0-8.4.9 and 9.0.0-9.7.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server, MySQL Cluster. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
References (1)
Core 1
Core References
Vendor Advisory vendor-advisory
Oracle Advisory
https://www.oracle.com/security-alerts/cspujun2026.html
Scores
CVSS v3
7.5
EPSS
0.0047
EPSS Percentile
37.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-400
Status
published
Products (7)
oracle/mysql_cluster
8.0.11 - 8.0.46
oracle/mysql_server
8.4.0 - 8.4.9
Oracle Corporation/MySQL Cluster
8.0.11-8.0.46
Oracle Corporation/MySQL Cluster
8.4.0-8.4.9
Oracle Corporation/MySQL Cluster
9.0.0-9.7.0
Oracle Corporation/MySQL Server
8.4.0-8.4.9
Oracle Corporation/MySQL Server
9.0.0-9.7.0
Published
Jun 17, 2026
Tracked Since
Jun 17, 2026