CVEFinder.io

CVE-2026-21937

🔶 medium
Summary

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: DDL). Supported versions that are affected are 8.0.0-8.0.44, 8.4.0-8.4.7 and 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

Description

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: DDL). Supported versions that are affected are 8.0.0-8.0.44, 8.4.0-8.4.7 and 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).

CVSS Score
4.9
Medium
EPSS Score
0.0
Exploit Probability
Published Date
2026-01-20
First Seen: 2026-01-28
Last Modified 2026-01-29
Source NVD 🔗
CVSS Vector 3.1 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

🔗 References 1

https://www.oracle.com/security-alerts/cpujan2026.html
Vendor Advisory

📦 Affected Products 3

Vendor Product Status Affected Versions
oracle mysql_server Affected
> 8.0.0 < 8.0.44
oracle mysql_server Affected
> 8.4.0 < 8.4.7
oracle mysql_server Affected
> 9.0.0 < 9.5.0

🔗 Related CVEs 6

CVE ID Severity CVSS EPSS Summary Published
CVE-2026-21929 🔶 medium 5.3 0.0 Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Parser). Supported versions that are affe... 2026-01-20
CVE-2026-21936 🔶 medium 4.9 0.0 Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). Supported versions that are affected are... 2026-01-20
CVE-2026-21941 🔶 medium 4.9 0.0 Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are a... 2026-01-20
CVE-2026-21948 🔶 medium 4.9 0.0 Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are a... 2026-01-20
CVE-2026-21949 🔶 medium 6.5 0.0 Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are a... 2026-01-20
CVE-2026-21950 🔶 medium 6.5 0.0 Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are a... 2026-01-20
These CVEs affect the same products