CitrixBleed 2 (CVE-2025-5777): Critical Out-of-Bounds Read in NetScaler ADC and Gateway

Sep 3, 2025 · 3 min read · Security researchers have uncovered a high-severity vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway—CVE-2025-5777, nicknamed “CitrixBleed 2.” This flaw allows an unauthenticated attacker to craft a specially malformed HTTP POST req...