NetScaler intrusions chaining CVE-2026-88771 and CVE-2026-88779

Overview In early October 2026, Rapid7 analysts investigated a compromise of a Citrix NetScaler ADC appliance. The appliance was running an affected 14.1 build and was exposed to active exploitation targeting NetScaler authentication and SAML deployments. The intrusion achieved root code execution…

security

Sources

Vulnerabilities

Why this score
Signals contributing to the severity score
SignalPoints
kev added50
kev short fuse — 3 days to remediate15
ssvc active35
cvss critical — 9.520
widely deployed15
NetScaler intrusions chaining CVE-2026-88771 and CVE-2026-88779 · TechNews