CVE-2021-22955 — Uncontrolled Resource Consumption in Citrix Application Delivery Controller Firmware

CWE-400 — Uncontrolled Resource Consumption4 documents3 sources
Severity
7.5HIGHNVD
EPSS
0.5%
top 33.68%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
10
Citrix Application Delivery Controller FirmwareCitrix GatewayCitrix ADC+7 more
Timeline
PublishedDec 7
Latest updateDec 8

Description

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages10 packages

▶NVDcitrix/gateway12.1 — 12.1-63.22+2

🔴Vulnerability Details

1
GHSA
GHSA-xwgf-rg8j-2j5x: A unauthenticated denial of service vulnerability exists in Citrix ADC <13↗2021-12-08
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📋Vendor Advisories

2
Citrix
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 A↗2021-12-07
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Citrix
Citrix Application Delivery Controller and Citrix Gateway Edition appliance Security Update↗
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