Suspected State Hackers Exploited Citrix NetScaler for Weeks. 50,000 Devices May Still Be Exposed.

Datawater reports: Two critical NetScaler zero-days, CVE-2026-88771 and CVE-2026-88772, were used against organizations worldwide before a patch existed. CISA’s deadline is today. Patching alone will not tell you whether you were already breached. Threat level: Critical What: Two unauthenticated remote-code-execution flaws in Citrix NetScaler ADC and NetScaler Gateway, both CVSS 9.5. Status: Exploited as zero-days.... Source

Who should care: Cybersecurity · Privacy officers · Administrators

This summary is AI-assisted and may contain errors. It is an original briefing to help you gauge significance quickly — not a reproduction of the source. Always read the linked original before relying on it. See our methodology.