Microsoft’s November 2026 Patch Tuesday update, KB5132061, introduces stricter PowerShell script-signing validation that could cause older scripts to stop working. The change strengthens security by ...

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 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 ...

The public still doesn’t know who is abusing a critical Citrix vulnerability exploited as a zero-day weeks before disclosure, but we now know that the unknown digital intruders have used ...

The hacking of internet-exposed, vulnerable Citrix NetScaler ADC and Gateway deployments has escalated. What started as stealthy targeting via zero-day exploits has now become widespread “spray and ...

Citrix on Sept. 27 disclosed two critical NetScaler zero-day vulnerabilities after reports of exploitation had caused alarm among customers for several days. CVE-2026-88771 is a remote code execution ...

Exploitation activity linked to zero-day vulnerabilities in Citrix NetScaler were initially detected on Thursday, days before public disclosure, according to a report Monday from GreyNoise. A ...