Citrix has urged administrators to immediately patch a critical NetScaler RCE flaw affecting NetScaler ADC and NetScaler Gateway. The vulnerability could allow attackers to execute code remotely or crash affected appliances. Tracked as CVE-2026-107406, the issue stems from a memory overflow weakness. However, exposure depends on configuration: appliances must operate as a SAML Identity Provider…
Citrix has released emergency updates for a NetScaler zero-day that attackers have exploited against appliances using SAML authentication. Tracked as CVE-2026-88779, the vulnerability can crash affected systems and interrupt access to services. The memory buffer flaw affects NetScaler ADC and NetScaler Gateway deployments using SAML authentication with Gateway or AAA functionality. It carries a CVSS…
Citrix has confirmed that attackers are exploiting two NetScaler zero-days that allow remote code execution. The company has released security updates for affected NetScaler ADC and NetScaler Gateway appliances and urges administrators to upgrade promptly. The vulnerabilities, CVE-2026-88771 and CVE-2026-88772, each carry a severity score of 9.5. Their disclosure follows private warnings from security teams,…
Attackers have begun targeting a critical Citrix NetScaler auth bypass vulnerability after a public proof-of-concept exploit emerged online. Administrators should review exposed appliances and apply Citrix’s recommended updates without delay. CVE-2026-19490 allows remote authentication bypass Tracked as CVE-2026-19490, the flaw can allow unauthenticated attackers to bypass login protections remotely. The vulnerability affects NetScaler appliances configured…
The Citrix NetScaler vulnerability is exposing thousands of systems to potential attacks. Security researchers identified tens of thousands of internet-facing instances that remain accessible and at risk. These systems support a large number of web services, which increases the potential impact. As a result, a single unpatched flaw could affect critical infrastructure across multiple regions.…
Citrix NetScaler vulnerabilities have triggered urgent action across enterprise environments. The flaws affect systems that handle authentication and traffic control, which makes them high-value targets. Citrix has urged administrators to apply patches immediately to reduce exposure. These systems often sit at the edge of networks, where they manage access to internal services. Memory flaw exposes…
Citrix warns users of login issues after implementing a fix for the NetScaler authentication bypass vulnerability, urging immediate attention to the problem.