A new report released today by Fox-IT, part of NCC Group PLC, has detailed how about 2,000 Citrix NetScalers have been exploited by a threat actor to gain persistent access. Citrix NetScaler is an ...

Citrix NetScaler ADC and NetScaler Gateway are impacted by a critical severity flaw that allows the disclosure of sensitive information from vulnerable appliances. The flaw is tracked as CVE-2023-4966 ...

Citrix has fixed a critical vulnerability, tracked as CVE-2025-5777, found within NetScaler ADC and NetScaler Gateway. The vulnerability, assigned a critical CVSS score of 9.3, is described as an ...

Citrix NetScaler received patches for another memory leak vulnerability similar to CitrixBleed, as well as memory overflow, file read and denial-of-service issues ...

Citrix has warned its NetScaler ADC and NetScaler Gateway customers against two critical zero-day vulnerabilities that have active exploitations in the wild. Tracked as CVE-2023-6548 and CVE-2023-6549 ...

Citrix has released patches for three zero-day vulnerabilities in NetScaler ADC and Gateway, one of which was already being exploited by attackers. The flaws, tracked as CVE-2025-7775, CVE-2025-7776, ...

Attackers wasted little time targeting the latest memory disclosure bug in Citrix NetScaler, after researchers published a ...

Citrix has released a feature enhancement designed to block attackers from using the Datagram Transport Layer Security (DTLS) feature of Citrix ADC and Gateway devices as an amplification vector in ...

A zero-day vulnerability in Citrix NetScaler Application Delivery Controller (ADC) and Citrix NetScaler Gateway appears to be being exploited by an unspecified advanced persistent threat (APT) actor ...

Time may be running short for users of Citrix’s NetScaler Application Delivery Controller (ADC) and NetScaler Gateway products who have not yet patched against two recently disclosed vulnerabilities ...

A critical vulnerability that hackers have exploited since August, which allows them to bypass multifactor authentication in Citrix networking hardware, has received a patch from the manufacturer.