NetScaler ADC

Citrix has issued a critical alert to IT administrators, urging them to immediately patch systems affected by a newly discovered vulnerability in its NetScaler Application Delivery Controller (ADC) networking appliances and NetScaler Gateway secure remote access solutions.

Citrix has issued critical security patches for its NetScaler ADC (Application Delivery Controller) and NetScaler Gateway products, addressing a significant vulnerability identified as CVE-2026-107406. This flaw, characterized as a memory overflow issue, carries the potential to enable remote code execution…

This week's cybersecurity landscape is marked by the active exploitation of zero-day vulnerabilities in critical network infrastructure, specifically impacting NetScaler Application Delivery Controller (ADC) and FortiMail secure email gateways. These vulnerabilities represent significant threats as they are being leveraged…

Citrix has issued security advisories and patches for a critical zero-day vulnerability affecting its NetScaler ADC and NetScaler Gateway products. This flaw, identified as CVE-2026-88779, has already been actively exploited in targeted cyberattacks, posing a significant risk to organizations relying…

Threat actors are actively exploiting a critical pre-authentication command injection vulnerability in Citrix NetScaler ADC and NetScaler Gateway, enabling them to deploy web shells and exfiltrate sensitive configuration data. The LevelBlue Threat Hunt Operations & Research (THOR) team observed…

Unknown threat actors have been observed exploiting a newly patched security flaw in Citrix NetScaler ADC and NetScaler Gateway appliances to target organizations in North America and Europe. This exploitation activity, identified by Mandiant Consulting and the Google Threat Intelligence…

Attackers have commenced exploiting a critical-severity authentication bypass vulnerability affecting Citrix NetScaler appliances in live attacks, as reported by vulnerability intelligence firm Previdian. The specific vulnerability is identified by the Common Vulnerabilities and Exposures (CVE) identifier CVE-2026-19490.

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) announced on Wednesday the addition of seven security flaws to its Known Exploited Vulnerabilities (KEV) catalog. These vulnerabilities have been actively targeted by malicious actors, indicating their significant risk to organizations.

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has issued a directive mandating all federal civilian executive branch agencies to patch a critical remote code execution (RCE) vulnerability affecting Citrix NetScaler appliances.

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added six vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog on Wednesday, citing evidence of active exploitation. This action mandates that federal agencies patch these vulnerabilities by a specific deadline to mitigate…

Citrix has issued urgent updates to resolve two significant security vulnerabilities affecting its NetScaler Application Delivery Controller (ADC) and NetScaler Gateway products. The most critical of these is an authentication bypass flaw that allows unauthorized access to protected resources.

Citrix has issued an urgent warning to its customers, advising them to immediately patch two critical vulnerabilities that affect its NetScaler Gateway secure remote access solutions and NetScaler ADC networking appliances.

Citrix released security updates on Tuesday to address six vulnerabilities affecting its NetScaler ADC and NetScaler Gateway products. These flaws could allow attackers to read arbitrary files or cause denial-of-service (DoS) conditions on affected systems.