CVE-2025-21521

EUVD-2025-2510
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Thread Pooling).  Supported versions that are affected are 8.0.39 and prior, 8.4.2 and prior and  9.0.1 and prior. Easily exploitable vulnerability allows unauthenticated 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 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).
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
oracleCNA
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 37%
Affected Products (NVD)
VendorProductVersion
oraclemysql_server
8.0.0 ≤
𝑥
≤ 8.0.39
oraclemysql_server
8.4.0 ≤
𝑥
≤ 8.4.2
oraclemysql_server
9.0.0 ≤
𝑥
≤ 9.0.1
𝑥
= Vulnerable software versions