CVE-2023-21963

LOW

MySQL Server < 5.7.40 and <= 8.0.31 - Authenticated Partial Denial of Service in Connection Handling

Title source: llm
STIX 2.1

Description

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Connection Handling). Supported versions that are affected are 5.7.40 and prior and 8.0.31 and prior. 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 partial denial of service (partial DOS) of MySQL Server. CVSS 3.1 Base Score 2.7 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L).

References (2)

Core 2

Scores

CVSS v3 2.7
EPSS 0.0009
EPSS Percentile 26.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

Status published
Products (1)
oracle/mysql_server 5.7.0 - 5.7.40
Published Apr 18, 2023
Tracked Since Feb 18, 2026