What is CVE-2021-36097?

CVE-2021-36097 is a low-severity vulnerability in Otrs, classified under Incorrect Privilege Assignment. CVSS score: 3.5/10. Published 2021-10-18.

How severe is CVE-2021-36097?

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

Privilege escalation in Otrs

CVE-2021-36097

Agents are able to lock the ticket without the "Owner" permission. Once the ticket is locked, it could be moved to the queue where the agent has "rw" permissions and gain a full control. This issue affects: OTRS AG OTRS 8.0.x version: 8.0.16 and prior versions.

Published 2021-10-18 · 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:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (42.0th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 42.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Otrs
Otrs Ag — versions 8.0.x

Weakness classification (CWE)

CWE-266 — Incorrect Privilege Assignment

References

otrs.com/release-notes/otrs-security-advisory-2021-20/ (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2021-36097?: CVE-2021-36097 is a low-severity vulnerability in Otrs, classified under Incorrect Privilege Assignment. CVSS score: 3.5/10. Published 2021-10-18.
How severe is CVE-2021-36097?: Low severity. CVSS v3 base score is 3.5 out of 10.