CVE-2021-22956

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

An uncontrolled resource consumption vulnerability exists in Citrix ADC <13.0-83.27, <12.1-63.22 and 11.1-65.23 that could allow an attacker with access to NSIP or SNIP with management interface access to cause a temporary disruption of the Management GUI, Nitro API, and RPC communication.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-400

Affected software

Vendor	Product	Versions
n/a	Citrix ADC, Citrix Gateway, Citrix SDWAN	Citrix ADC 11.1,12.1,13.0,13.1

References

https://support.citrix.com/article/CTX330728Vendor Advisory
https://support.citrix.com/article/CTX330728Vendor Advisory

Timeline

Published: Dec 7, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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