Critical Citrix NetScaler memory flaw actively exploited in attacks

Hackers are exploiting a critical severity vulnerability, tracked as CVE-2026-3055, in Citrix NetScaler ADC and NetScaler Gateway appliances to obtain sensitive data.
Infosecurity Magazine

Critical Citrix NetScaler Vulnerability Exploited in the Wild

Researchers from watchTowr and Defused have found evidence that attackers are actively exploiting CVE-2026-3055, a critical NetScaler vulnerability ...
The Hacker News

Citrix NetScaler Under Active Recon for CVE-2026-3055 (CVSS 9.3) Memory Overread Bug

The vulnerability, CVE-2026-3055 (CVSS score: 9.3), refers to a case of insufficient input validation leading to memory overread, which an attacker could exploit to leak potentially sensitive ...
SecurityWeek

Exploitation of Fresh Citrix NetScaler Vulnerability Begins

Threat actors have started to exploit CVE-2026-3055, a critical flaw in NetScaler that leads to sensitive information disclosure.
Threat Post

Critical Citrix DDoS Bug Shuts Down Network, Cloud App Access

The distributed computing vendor patched the flaw, affecting Citrix ADC and Gateway, along with another flaw impacting availability for SD-WAN appliances. A critical security bug in the Citrix ...