How severe is CVE-2021-21437?

CVE-2021-21437 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2021-21437 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-21437?

CVE-2021-21437 primarily affects Otrs Itsmconfigurationmanagement. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-21437?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-21437 published?

CVE-2021-21437 was published on 2021-03-22 and last updated on 2026-06-17.

CVE-2021-21437

CVE-2021-21437 is a low-severity vulnerability in Otrs Itsmconfigurationmanagement with a CVSS 3.x base score of 3.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-862.

Key facts

Severity: Low (CVSS 3.x base score 3.5)
CVSS v2: 4.0
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-862
Affected product: Otrs Itsmconfigurationmanagement
Published: 2021-03-22
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is 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
How severe is CVE-2021-21437?: CVE-2021-21437 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2021-21437 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-21437?: CVE-2021-21437 primarily affects Otrs Itsmconfigurationmanagement. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-21437?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-21437 published?: CVE-2021-21437 was published on 2021-03-22 and last updated on 2026-06-17.

References

https://otrs.com/release-notes/otrs-security-advisory-2021-07/

Affected products (2)

cpe:2.3:a:otrs:itsmconfigurationmanagement:*:*:*:*:*:*:*:*
cpe:2.3:a:otrs:otrscisincustomerfrontend:*:*:*:*:*:*:*:*

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