2026-014: Critical Vulnerabilities in Citrix NetScaler ADC and Gateway
ID: c8df10ee-5152-5247-bc37-8933651aa268
STIX ID: report--c8df10ee-5152-5247-bc37-8933651aa268
Feed Name: CERT-EU Security Advisories
Threat Score
**Summary:** On 27 September 2026 Citrix published a bulletin for Citrix NetScaler ADC and Gateway describing eight vulnerabilities — notably two critical unauthenticated RCEs (CVE-2026-88771, CVE-2026-88772) that are actively exploited in the wild — affecting 13.1 and 14.1 builds; CERT-EU and Citrix recommend immediate patching, enabling Enhanced ISN Generation where relevant, and running compromise assessments on internet-facing appliances.
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