Citrix Security Bulletins guidance
Vendor revision: Jul 20, 2026Vendor remediation details
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. Cloud Software Group has published a related blog at https://www.netscaler.com/blog/news/evaluating-netscaler-logs-for-indicators-of-attempted-exploitation-of-cve-2025-5777/ which contains further context.
Vendor-listed releases
- 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