NetScaler ADC and NetScaler Gateway Security Bulletin for CVE-2025-5349 and CVE-2025-5777

Severity - Critical

Description of Problem

A vulnerability has been discovered in NetScaler ADC (formerly Citrix ADC) and NetScaler Gateway (formerly Citrix Gateway). Refer below for further details.

Affected Versions

The following supported versions of NetScaler ADC and NetScaler Gateway are affected by the vulnerabilities:

• NetScaler ADC and NetScaler Gateway 14.1 BEFORE 14.1-43.56

• NetScaler ADC and NetScaler Gateway 13.1 BEFORE 13.1-58.32

• NetScaler ADC 13.1-FIPS and NDcPP BEFORE 13.1-37.235-FIPS and NDcPP

• NetScaler ADC 12.1-FIPS BEFORE 12.1-55.328-FIPS

What Customers Should Do

Cloud Software Group strongly urges affected customers of NetScaler ADC and NetScaler Gateway to install the relevant updated versions as soon as possible.

• NetScaler ADC and NetScaler Gateway 14.1-43.56 and later releases

• NetScaler ADC and NetScaler Gateway 13.1-58.32 and later releases of 13.1

• NetScaler ADC 13.1-FIPS and 13.1-NDcPP 13.1-37.235 and later releases of 13.1-FIPS and 13.1-NDcPP

• NetScaler ADC 12.1-FIPS 12.1-55.328 and later releases of 12.1-FIPS

Additionally, we recommend running the following commands to terminate all active ICA and PCoIP sessions after all NetScaler appliances in the HA pair or cluster have been upgraded to the fixed builds.:

kill icaconnection -all

kill pcoipConnection -all

Please ensure that the formatting remains intact as you copy and paste these commands.

Note: NetScaler ADC and NetScaler Gateway versions 12.1 and 13.0 are now End Of Life (EOL) and no longer supported. Customers are recommended to upgrade their appliances to one of the supported versions that address the vulnerabilities.

Full support link https://support.citrix.com/wolken-support/kbsearch/article?articleNumber=CTX693420