The U.S. Cybersecurity and Infrastructure Security Agency (CISA) ordered government agencies to patch their Citrix NetScaler appliances against an actively exploited vulnerability by Thursday.

Citrix initially disclosed CVE-2026-3055 in a security bulletin on March 23, alongside a high-severity race condition flaw tracked as CVE-2026-4368. The issue impacts versions of the two products ...

A critical vulnerability in Citrix’s networking and security solutions is being exploited in the wild, security researchers have confirmed. The vulnerability, disclosed by Citrix as CVE-2026-3055 on ...

CISA adds Citrix CVE‑2026‑3055 to Known Exploited Vulnerabilities catalog, confirming in‑the‑wild abuse Critical input validation flaw in NetScaler ADC/Gateway SAML IDP enables memory overread and ...

A recently disclosed critical security flaw impacting Citrix NetScaler ADC and NetScaler Gateway is witnessing active reconnaissance activity, according to Defused Cyber and watchTowr. The ...

In-the-wild exploitation of a fresh critical-severity Citrix NetScaler vulnerability has started less than a week after public disclosure, attack surface management firm WatchTowr warns. Last Monday, ...

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