CVE-2026-21965

low-risk

Published 2026-01-20

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Pluggable Auth). 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 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).

Do I need to act?

0.05% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 2.7/10 Low

NETWORK / LOW complexity

Affected Products (1)

Mysql Server

Affected Vendors

Oracle

References (1)

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

/ 100

low-risk

Severity 14/34 · Moderate

Exploitability 0/34 · Minimal

Exposure 5/34 · Minimal