VYPR
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Medium severity6.5NVD Advisory· Published Jun 14, 2021· Updated Jun 17, 2026

CVE-2021-21439

CVE-2021-21439

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

6
  • OTRS/Otrs4 versions
    cpe:2.3:a:otrs:otrs:*:*:*:*:*:*:*:*+ 3 more
    • cpe:2.3:a:otrs:otrs:*:*:*:*:*:*:*:*range: >=7.0.0,<7.0.27
    • cpe:2.3:a:otrs:otrs:*:*:*:*:community:*:*:*range: >=6.0.1,<=6.0.30
    • (no CPE)range: <7.0.26, <8.0.13
    • (no CPE)range: 7.0.x
  • OTRS/((OTRS)) Community Editionllm-fuzzy2 versions
    >=6.0.1+ 1 more
    • (no CPE)range: >=6.0.1
    • (no CPE)range: 6.0.1

Patches

Vulnerability mechanics

References

2

News mentions

0

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