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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
hackeroneCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 70%
VendorProductVersion
citrixapplication_delivery_controller_firmware
𝑥
≤ 11.1-65.23
citrixapplication_delivery_controller_firmware
12.1 ≤
𝑥
< 12.1-63.22
citrixapplication_delivery_controller_firmware
13.0 ≤
𝑥
< 13.0-83.27
citrixgateway
𝑥
< 11.1-65.23
citrixgateway
12.1 ≤
𝑥
< 12.1-63.22
citrixgateway
13.0 ≤
𝑥
< 13.0-83.27
𝑥
= Vulnerable software versions