Vulnerability Details CVE-2021-22955
A unauthenticated denial of service vulnerability exists in Citrix ADC <13.0-83.27, <12.1-63.22 and 11.1-65.23 when configured as a VPN (Gateway) or AAA virtual server could allow an attacker to cause a temporary disruption of the Management GUI, Nitro API, and RPC communication.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.007
EPSS Ranking 70.1%
CVSS Severity
CVSS v3 Score 7.5
CVSS v2 Score 4.3
References
Products affected by CVE-2021-22955
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cpe:2.3:a:citrix:gateway:11.1
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cpe:2.3:a:citrix:gateway:11.1-65.12
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cpe:2.3:a:citrix:gateway:12.1
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cpe:2.3:a:citrix:gateway:12.1-61.18
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cpe:2.3:a:citrix:gateway:12.1-62.25
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cpe:2.3:a:citrix:gateway:12.1-62.27
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cpe:2.3:a:citrix:gateway:13.0
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cpe:2.3:a:citrix:gateway:13.0-58.30
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cpe:2.3:a:citrix:gateway:13.0-64.35
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cpe:2.3:a:citrix:gateway:13.0-76.29
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cpe:2.3:a:citrix:gateway:13.0-82.42
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cpe:2.3:a:citrix:gateway:13.0-82.45
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cpe:2.3:h:citrix:application_delivery_controller:-
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cpe:2.3:o:citrix:application_delivery_controller_firmware:10.1
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cpe:2.3:o:citrix:application_delivery_controller_firmware:10.5
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cpe:2.3:o:citrix:application_delivery_controller_firmware:10.5-70.18
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cpe:2.3:o:citrix:application_delivery_controller_firmware:10.5e
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cpe:2.3:o:citrix:application_delivery_controller_firmware:11.0
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cpe:2.3:o:citrix:application_delivery_controller_firmware:11.1
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cpe:2.3:o:citrix:application_delivery_controller_firmware:11.1-64.14
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cpe:2.3:o:citrix:application_delivery_controller_firmware:11.1-65.12
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cpe:2.3:o:citrix:application_delivery_controller_firmware:11.1-65.20
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cpe:2.3:o:citrix:application_delivery_controller_firmware:11.1-65.22
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cpe:2.3:o:citrix:application_delivery_controller_firmware:12.1
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cpe:2.3:o:citrix:application_delivery_controller_firmware:12.1-55.238
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cpe:2.3:o:citrix:application_delivery_controller_firmware:12.1-55.291
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cpe:2.3:o:citrix:application_delivery_controller_firmware:12.1-57.18
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cpe:2.3:o:citrix:application_delivery_controller_firmware:12.1-58.15
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cpe:2.3:o:citrix:application_delivery_controller_firmware:12.1-61.18
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cpe:2.3:o:citrix:application_delivery_controller_firmware:12.1-62.23
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cpe:2.3:o:citrix:application_delivery_controller_firmware:12.1-62.27
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cpe:2.3:o:citrix:application_delivery_controller_firmware:13.0
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cpe:2.3:o:citrix:application_delivery_controller_firmware:13.0-58.30
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cpe:2.3:o:citrix:application_delivery_controller_firmware:13.0-64.35
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cpe:2.3:o:citrix:application_delivery_controller_firmware:13.0-76.29
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cpe:2.3:o:citrix:application_delivery_controller_firmware:13.0-82.41
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cpe:2.3:o:citrix:application_delivery_controller_firmware:13.0-82.45