What is CVE-2025-21588?

CVE-2025-21588 is a medium-severity vulnerability in Oracle MySQL Server, classified under Improper Access Control. CVSS score: 4.9/10. Published 2025-04-15.

How severe is CVE-2025-21588?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Vulnerability in Oracle MySQL Server

CVE-2025-21588

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: DML). Supported versions that are affected are 8.4.0-8.4.4 and 9.0.0-9.2.0. 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).

EPSS: 0.008 (53.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.

Affected products

Oracle Mysql_server
Oracle Corporation Mysql Server — versions 8.4.0, 9.0.0

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

secalert_us@oracle.com (vendor-advisory, Patch, Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2025-21588?: CVE-2025-21588 is a medium-severity vulnerability in Oracle MySQL Server, classified under Improper Access Control. CVSS score: 4.9/10. Published 2025-04-15.
How severe is CVE-2025-21588?: Medium severity. CVSS v3 base score is 4.9 out of 10.