VULNERABILITY INTELLIGENCE

CVE-2021-21439

CVSS score6.5 MEDIUM
EPSS probability0.88%
CISA KEVNot currently listed
Published2021-06-14
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

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.

Weakness classification

  • security@otrs.com: CWE-754
  • nvd@nist.gov: CWE-755

Primary references