CVE-2021-21439

MediumCVSS 6.5/10Last modified Jun 17, 2026

Description

DoS attack can be performed when an email contains specially designed URL in the body. It can lead to the high CPU usage and cause low quality of service, or in extreme case bring the system to a halt. This issue affects: OTRS AG ((OTRS)) Community Edition 6.0.x version 6.0.1 and later versions. OTRS AG OTRS 7.0.x version 7.0.26 and prior versions; 8.0.x version 8.0.13 and prior versions.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-754 CWE-755

Affected software

No affected versions have been published.

Timeline

Published: Jun 14, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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