Citrix NetScaler 0-Day RCE Vulnerabilities Actively Exploited in Attacks

Citrix urges immediate upgrades of NetScaler amid widespread exploitation attempts

Security teams received urgent calls to disconnect servers before authorities confirmed critical zero-day flaws.

Citrix Releases Emergency Patches for NetScaler RCE Zero-Days

Citrix issued emergency patches for two critical NetScaler RCE vulnerabilities (CVE-2026-88771, CVE-2026-88772) with 9.5 CVSS scores exploited in the wild.

Citrix confirms two NetScaler RCE zero-days exploited in attacks

Citrix has confirmed that two critical NetScaler remote code execution vulnerabilities, tracked as CVE-2026-88771 and CVE-2026-88772, are being exploited in attacks and that it has released security updates to fix the flaws.

ACSC warns of actively exploited vulnerabilities in Citrix NetScaler products

The Australian Cyber Security Centre (ACSC) has issued a critical alert for Australian organisations running Citrix NetScaler ADC and Citrix NetScaler Gateway, warning of multiple newly disclosed vulnerabilities and urging customers to apply vendor updates.

Critical Zero-Day Vulnerabilities Exploited in Citrix NetScaler ADC, Gateway

Critical Zero-Day Vulnerabilities Exploited in Citrix NetScaler ADC, Gateway dskinner Sep 27, 2026 Release DateSeptember 27, 2026 Last RevisedSeptember 27, 2026 DescriptionCISA is amplifying Citrix’s disclosure of eight new vulnerabilities affecting Citrix NetScaler ADC and Citrix NetScaler Gateway products: CVE-2026-88771, CVE-2026-88772, CVE-2026-88773, CVE-2026-88774, CVE-2026-88775, CVE-2026-88776, CVE-2026-88777, and CVE-2026-88778. CISA…