CVE-2025-7775

Memory overflow vulnerability leading to Remote Code Execution and/or Denial of Service in NetScaler ADC and NetScaler Gateway when NetScaler is configured as Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server (OR) NetScaler ADC and NetScaler Gateway 13.1, 14.1, 13.1-FIPS and NDcPP: LB virtual servers of type (HTTP, SSL or HTTP_QUIC) bound with IPv6 services or servicegroups bound with IPv6 servers (OR) NetScaler ADC and NetScaler Gateway 13.1, 14.1, 13.1-FIPS and NDcPP: LB virtual servers of type (HTTP, SSL or HTTP_QUIC) bound with DBS IPv6 services or servicegroups bound with IPv6 DBS servers (OR) CR virtual server with type HDX

How does this detection method work?

Extracts the date from the remote instance and compares it to the date in which patches were made available based on the advisory details.

How do I run this script?

1. Download Nuclei from here
2. Copy the template to your local system
3. Run the following command: nuclei -u https://yourHost.com -t template.yaml

References

• https://nvd.nist.gov/vuln/detail/CVE-2025-7775
• https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX694938

Credit to FoxIT and @darses for this detection technique: https://github.com/fox-it/citrix-netscaler-triage/blob/main/scan-citrix-netscaler-version.py