Vulnerability in Otrs Ag

CVE-2025-24391

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

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (13.3th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 13th percentile — 13.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-24391: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

  • Otrs Ag — versions 7.0.x, 8.0.x, 2023.x

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-24391?
CVE-2025-24391 is a medium-severity vulnerability in Otrs Ag, classified under Observable Discrepancy. CVSS score: 5.3/10. Published 2025-07-14.
How severe is CVE-2025-24391?
Medium severity. CVSS v3 base score is 5.3 out of 10.