Act
active
CISA KEV: Citrix NetScaler RCE Actively Exploited, Feds Must Patch by Saturday
- Engineer — Act: Citrix NetScaler is a common edge appliance; active exploitation of an RCE with a CISA KEV order makes this immediate. Identify all NetScaler instances in your environment and apply the vendor patch now — Saturday deadline applies to federal agencies but exploitation is not sector-limited.
- SOC/IR — Act: Active exploitation of an edge RCE means attackers may already be inside before patching occurs; initiate an assume-breach sweep on NetScaler appliances, reviewing management-plane logs and lateral movement indicators since the vulnerability became public.
- Leader — Act: CISA’s mandatory patch order with a Saturday deadline signals systemic exploitation — confirm whether your organization runs Citrix NetScaler, verify remediation is in progress, and brief leadership if you operate federal systems or customer-facing NetScaler infrastructure.
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