CVE-2021-22955

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.67% Top 30%
Vendor Advisory citrix.com
Affected: n/a Citrix ADC, Citrix Gateway
Published at:
Updated at:

References

Link Tags
https://support.citrix.com/article/CTX330728 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-22955?
CVE-2021-22955 has been scored as a high severity vulnerability.
How to fix CVE-2021-22955?
To fix CVE-2021-22955, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-22955 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-22955 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-22955?
CVE-2021-22955 affects n/a Citrix ADC, Citrix Gateway.
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