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NetScaler ADC and NetScaler Gateway Security Bulletin for CVE-2025-6543

A vulnerability has been discovered in NetScaler ADC (formerly Citrix ADC) and NetScaler Gateway (formerly Citrix Gateway).

NetScaler ADC and NetScaler Gateway versions 12.1 and 13.0 are now End Of Life (EOL) and are vulnerable. Customers are recommended to upgrade their appliances to one of the supported versions that address the vulnerabilities.

Affected Versions

NetScaler ADC and NetScaler Gateway 14.1 BEFORE 14.1-47.46
NetScaler ADC and NetScaler Gateway 13.1 BEFORE 13.1-59.19
NetScaler ADC 13.1-FIPS and NDcPP BEFORE 13.1-37.236-FIPS and NDcPP

Remediation

Exploits of CVE-2025-6543 on unmitigated appliances have been observed.

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

Source & References

https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX694788

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