What is CVE-2020-1776?

CVE-2020-1776 is a low-severity vulnerability in Otrs, classified under Insufficient Session Expiration. CVSS score: 3.5/10. Published 2020-07-20.

How severe is CVE-2020-1776?

Low severity. CVSS v3 base score is 3.5 out of 10.

Vulnerability in Otrs

CVE-2020-1776

When an agent user is renamed or set to invalid the session belonging to the user is keept active. The session can not be used to access ticket data in the case the agent is invalid. This issue affects ((OTRS)) Community Edition: 6.0.28 and prior versions. OTRS: 7.0.18 and prior versions, 8.0.4. and prior versions.

Published 2020-07-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.009 (58.7th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 58.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: -0.000

Affected products

Otrs
Otrs Ag — versions 7.0.x, 8.0.x
Otrs Ag ((Otrs)) Community Edition — versions 6.0.x

Weakness classification (CWE)

CWE-613 — Insufficient Session Expiration

References

otrs.com/release-notes/otrs-security-advisory-2020-13/ (Patch, Vendor Advisory)
lists.debian.org/debian-lts-announce/2023/08/msg00040.html (mailing-list)

Frequently asked questions

What is CVE-2020-1776?: CVE-2020-1776 is a low-severity vulnerability in Otrs, classified under Insufficient Session Expiration. CVSS score: 3.5/10. Published 2020-07-20.
How severe is CVE-2020-1776?: Low severity. CVSS v3 base score is 3.5 out of 10.