CVE advisoryKnown Exploit
CVE-2025-5777
Citrix NetScaler Gateway Memory Leak Vulnerability.
Halo Surface Signal: 5 out of 5 — more likely to be public-facing.
Citrix NetScaler devices, when configured as Gateways or AAA virtual servers, are susceptible to a memory overread vulnerability. This could allow unauthorized access to sensitive information, posing a business risk. This vulnerability is actively exploited, making remediation a priority.