What is CVE-2021-21437?

CVE-2021-21437 is a low-severity vulnerability in Otrs Itsmconfigurationmanagement, classified under CWE-264. CVSS score: 3.5/10. Published 2021-03-22.

How severe is CVE-2021-21437?

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

Auth bypass in Otrs Itsmconfigurationmanagement

CVE-2021-21437

Agents are able to see linked Config Items without permissions, which are defined in General Catalog. This issue affects: OTRSCIsInCustomerFrontend 7.0.15 and prior versions, ITSMConfigurationManagement 7.0.24 and prior versions

Published 2021-03-22 · 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: 0.007 (50.0th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 50.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Otrs Itsmconfigurationmanagement
Otrs Otrscisincustomerfrontend
Otrs Ag Itsmconfigurationmanagement — versions 7.0.x
Otrs Ag Otrscisincustomerfrontend — versions 7.0.x

Weakness classification (CWE)

References

otrs.com/release-notes/otrs-security-advisory-2021-07/ (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2021-21437?: CVE-2021-21437 is a low-severity vulnerability in Otrs Itsmconfigurationmanagement, classified under CWE-264. CVSS score: 3.5/10. Published 2021-03-22.
How severe is CVE-2021-21437?: Low severity. CVSS v3 base score is 3.5 out of 10.