Resource exhaustion in Citrix Application_delivery_controller
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 Manageme…
Vulnerability class: DoS (Denial of Service)
EPSS: 0.009 (54.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Citrix Application_delivery_controller
- Citrix Application_delivery_controller_firmware
- Citrix Gateway
- N/a Citrix Adc, Gateway — versions Citrix ADC 111.1, 2.1, 13.0,13.1
Weakness classification (CWE)
References
- support@hackerone.com (x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-22955?
- CVE-2021-22955 is a high-severity vulnerability in Citrix Application_delivery_controller, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2021-12-07.
- How severe is CVE-2021-22955?
- High severity. CVSS v3 base score is 7.5 out of 10.