Vulnerability Details CVE-2021-21439
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 54.7%
CVSS Severity
CVSS v3 Score 6.5
CVSS v2 Score 4.3
Products affected by CVE-2021-21439
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cpe:2.3:a:otrs:otrs:6.0.1
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cpe:2.3:a:otrs:otrs:6.0.10
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cpe:2.3:a:otrs:otrs:6.0.11
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cpe:2.3:a:otrs:otrs:6.0.12
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cpe:2.3:a:otrs:otrs:6.0.13
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cpe:2.3:a:otrs:otrs:6.0.14
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cpe:2.3:a:otrs:otrs:6.0.15
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cpe:2.3:a:otrs:otrs:6.0.16
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cpe:2.3:a:otrs:otrs:6.0.17
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cpe:2.3:a:otrs:otrs:6.0.18
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cpe:2.3:a:otrs:otrs:6.0.19
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cpe:2.3:a:otrs:otrs:6.0.2
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cpe:2.3:a:otrs:otrs:6.0.20
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cpe:2.3:a:otrs:otrs:6.0.21
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cpe:2.3:a:otrs:otrs:6.0.22
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cpe:2.3:a:otrs:otrs:6.0.23
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cpe:2.3:a:otrs:otrs:6.0.24
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cpe:2.3:a:otrs:otrs:6.0.26
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cpe:2.3:a:otrs:otrs:6.0.27
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cpe:2.3:a:otrs:otrs:6.0.28
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cpe:2.3:a:otrs:otrs:6.0.29
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cpe:2.3:a:otrs:otrs:6.0.3
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cpe:2.3:a:otrs:otrs:6.0.30
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cpe:2.3:a:otrs:otrs:6.0.4
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cpe:2.3:a:otrs:otrs:6.0.5
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cpe:2.3:a:otrs:otrs:6.0.6
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cpe:2.3:a:otrs:otrs:6.0.7
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cpe:2.3:a:otrs:otrs:6.0.8
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cpe:2.3:a:otrs:otrs:6.0.9
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cpe:2.3:a:otrs:otrs:7.0.0
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cpe:2.3:a:otrs:otrs:7.0.11
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cpe:2.3:a:otrs:otrs:7.0.12
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cpe:2.3:a:otrs:otrs:7.0.13
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cpe:2.3:a:otrs:otrs:7.0.14
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cpe:2.3:a:otrs:otrs:7.0.15
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cpe:2.3:a:otrs:otrs:7.0.16
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cpe:2.3:a:otrs:otrs:7.0.17
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cpe:2.3:a:otrs:otrs:7.0.18
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cpe:2.3:a:otrs:otrs:7.0.19
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cpe:2.3:a:otrs:otrs:7.0.21
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cpe:2.3:a:otrs:otrs:7.0.22
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cpe:2.3:a:otrs:otrs:7.0.23
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cpe:2.3:a:otrs:otrs:7.0.24
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cpe:2.3:a:otrs:otrs:7.0.26
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cpe:2.3:a:otrs:otrs:7.0.4
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cpe:2.3:a:otrs:otrs:7.0.5
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cpe:2.3:a:otrs:otrs:7.0.6
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cpe:2.3:a:otrs:otrs:7.0.7
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cpe:2.3:a:otrs:otrs:7.0.8
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cpe:2.3:a:otrs:otrs:8.0.0
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cpe:2.3:a:otrs:otrs:8.0.1
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cpe:2.3:a:otrs:otrs:8.0.10
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cpe:2.3:a:otrs:otrs:8.0.11
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cpe:2.3:a:otrs:otrs:8.0.12
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cpe:2.3:a:otrs:otrs:8.0.13
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cpe:2.3:a:otrs:otrs:8.0.2
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cpe:2.3:a:otrs:otrs:8.0.3
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cpe:2.3:a:otrs:otrs:8.0.4
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cpe:2.3:a:otrs:otrs:8.0.5
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cpe:2.3:a:otrs:otrs:8.0.6
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cpe:2.3:a:otrs:otrs:8.0.7
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cpe:2.3:a:otrs:otrs:8.0.9