Two Citrix NetScaler zero-days are exploited to deploy a modified Platypus remote access tool on vulnerable appliances.

CISA added CVE-2026-88771 and CVE-2026-88772 to its Known Exploited Vulnerabilities (KEV) Catalog on Sept. 27, 2026. Both are critical, zero-day vulnerabilities that can independently enable remote ...

Citrix customers just got through back-to-back weekends filled with varying levels of uncertainty and worry, as yet another actively exploited zero-day vulnerability was discovered in Citrix NetScaler ...

The attackers just keep coming after Citrix NetScaler appliances, as both the feds and private security researchers warn that someone found - and has already exploited - yet another Citrix bug before ...

A newly disclosed memory overflow flaw is being targeted in attacks, and NetScaler deployments require another round of patching for some customers. Citrix has warned customers about another ...

Citrix NetScaler administrators scrambled over the weekend to protect their appliances after exploitation of a new zero-day vulnerability began. Administrators initially reported reboots of fully ...

Citrix has released emergency updates for a new NetScaler denial-of-service vulnerability tracked as CVE-2026-88779 that has been exploited in zero-day attacks, with researchers investigating whether ...

Since the evening of October 2, 2026, an exploit for a new security vulnerability on Citrix NetScaler devices has apparently been circulating. The manufacturer warns in a blog post, security ...

Citrix NetScaler customers are reporting repeated appliance reboots after installing build 14.1-73.37, the emergency update released for two zero-day flaws under active attack. The failures appear ...

On Sept. 24, threat detection firm GreyNoise Intelligence observed a single US-based IP address scanning for Citrix NetScaler installations and conducting remote code execution (RCE) attacks. The ...

A sign is posted on the exterior of a Citrix office complex on January 31, 2022 in Santa Clara, California. Justin Sullivan/Getty Images A covert espionage campaign against enterprise network ...

Government authorities and security teams are racing to assess the fallout from a campaign aimed at critical flaws in Citrix NetScaler. Government agencies and critical infrastructure providers were ...