VULNERABILITY INTELLIGENCE

CVE-2021-22955

CVSS score7.5 HIGH
EPSS probability0.92%
CISA KEVNot currently listed
Published2021-12-07
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

Weakness classification

  • support@hackerone.com: CWE-400
  • nvd@nist.gov: CWE-400

Primary references