CVE-2025-24391

Name: CVE-2025-24391
Creator: NVD / NIST
Published: 2025-07-14T09:15:23.593+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.24%

Last modified Jun 17, 2026

CVE-2025-24391 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. A vulnerability in the External Interface of OTRS allows conclusions to be drawn about the existence of user accounts through different HTTP response codes and messages. This enables an attacker to systematically identify valid email addresses. This issue affects: * OTRS 7.0.X * OTRS 8.0.X * OTRS 2023.X * OTRS 2024.X * OTRS 2025.X. EPSS estimates a 0.24% chance of exploitation in the next 30 days.

Description

A vulnerability in the External Interface of OTRS allows conclusions to be drawn about the existence of user accounts through different HTTP response codes and messages. This enables an attacker to systematically identify valid email addresses. This issue affects: * OTRS 7.0.X * OTRS 8.0.X * OTRS 2023.X * OTRS 2024.X * OTRS 2025.X

Metrics

CVSS 3.1

5.3/10

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

EPSS Probability

0.24%

14.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-203

References

https://otrs.com/release-notes/otrs-security-advisory-2025-07/

Timeline

Published: Jul 14, 2025
Last Modified: Jun 17, 2026
Status: Deferred

Frequently Asked Questions

What is CVE-2025-24391?

How severe is CVE-2025-24391?

CVE-2025-24391 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.

How do I fix CVE-2025-24391?

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-2025-24391?

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

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Source: NVD / NIST