Vulnerability Overview
Exploitation Activity
Exploitation Intelligence
On September 26, 2026, security firm watchTowr reported two unpatched zero-day vulnerabilities in Citrix NetScaler ADC and Gateway appliances, allowing remote code execution (RCE) and actively exploited in the wild. Citrix has confirmed the existence of these vulnerabilities, tracked as CVE-2026-887...
Citrix disclosed six high-severity vulnerabilities in NetScaler ADC and Gateway appliances, including CVE-2026-8451, which allows unauthenticated memory disclosure when configured as a SAML identity provider. Other vulnerabilities can lead to denial-of-service (DoS) attacks, arbitrary file access, a...
Threat actors are actively exploiting CVE-2026-66066, a critical Ruby on Rails vulnerability known as KindaRails2Shell, which allows unauthenticated attackers to read arbitrary files from servers, potentially leading to remote code execution (RCE). Disclosed on July 30, 2026, this flaw affects numer...
