NetScaler C2: A Massive CVE-2026-88771 Exploitation Operation On September 27, 2026, Citrix released a security bulletin regarding multiple vulnerabilities in Citrix NetScaler ADC and Citrix NetScaler Gateway. One of them was CVE-2026-88771 (CVSSv4: 9.5), an improper input validation vulnerability exploited in the wild that allows an unauthenticated attacker to execute arbitrary commands.
NetScaler C2: A Massive CVE-2026-88771 Exploitation Operation
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