CVE-2025-21495

Name: CVE-2025-21495
Creator: NVD / NIST
Published: 2025-01-21T21:15:14.367+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.4/10EPSS 0.52%

Last modified Jun 17, 2026

CVE-2025-21495 is a medium-severity vulnerability rated 4.4/10 on the CVSS scale. Vulnerability in the MySQL Enterprise Firewall product of Oracle MySQL (component: Firewall). Supported versions that are affected are 8.0.40 and prior, 8.4.3 and prior and 9.1.0 and prior. EPSS estimates a 0.52% chance of exploitation in the next 30 days.

Description

Vulnerability in the MySQL Enterprise Firewall product of Oracle MySQL (component: Firewall). Supported versions that are affected are 8.0.40 and prior, 8.4.3 and prior and 9.1.0 and prior. Difficult to exploit vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Enterprise Firewall. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Enterprise Firewall. CVSS 3.1 Base Score 4.4 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H).

Metrics

CVSS 3.1

4.4/10

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.52%

40.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-770

Affected Software

Vendor	Product	Versions
Oracle	Mysql Enterprise Firewall	>= 8.0.0, <= 8.0.40
Oracle	Mysql Enterprise Firewall	>= 8.4.0, <= 8.4.3
Oracle	Mysql Enterprise Firewall	9.1.0

References

https://www.oracle.com/security-alerts/cpujan2025.htmlVendor Advisory

Timeline

Published: Jan 21, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-21495?

How severe is CVE-2025-21495?

CVE-2025-21495 has a CVSS score of 4.4/10 (MEDIUM severity). The EPSS model estimates a 0.52% probability of exploitation in the next 30 days.

How do I fix CVE-2025-21495?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-21495?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST