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2026-003: Multiple Vulnerabilities in Citrix NetScaler and Citrix ADC ↗ source

March 23, 2026 CERT-EU Advisory
Source: https://cert.europa.eu/publications/security-advisories/2026-003/

Summary

These vulnerabilities may lead to sensitive information disclosure and user session mix-up under specific configurations. At the time of writing, there is no public evidence of active exploitation. It is strongly recommended updating affected gateways, prioritising internet-facing assets. It is also recommended to preserve evidence for further investigation. The advisory describes two vulnerabilities: vulnerability that may result in memory overread.

News Coverage

No coverage found in monitored research blogs or news feeds.

CVEs Referenced in This Publication

CVECVSSAffected
CVE-2026-3055 9.3 Critical Citrix NetScaler Citrix NetScaler ADC (formerly Citrix ADC), NetScaler Gateway (formerly Citrix Gateway) and NetScaler ADC FIPS and NDcPP contain an out-of-bounds rea…
CVE-2026-4368 7.7 High NetScaler ADC Race Condition in NetScaler ADC and NetScaler Gateway when appliance is configured as Gateway (SSL VPN, ICA Proxy, CVPN, RDP Proxy) or AAA virtual se…

Extracted from the publication text. Each CVE links to its tracked detail page.

Vendors Named in This Publication

Citrix 24 KEV

Each vendor links to its Known Exploited Vulnerabilities catalog page. Only vendors that appear in the KEV catalog are listed, either because the publication cites one of their KEV entries or because it names them directly.