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High [CVE-2026-8452] Memory overflow vulnerability leading to unpredictable or erroneous behavior and Denial of Service
Memory overflow vulnerability NetScaler ADC and NetScaler Gateway leading to unpredictable or erroneous behavior and Denial of Service if the appliance is configured as a Gateway (SSL VPN, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server
High [CVE-2026-3055] Important Update: CVE Disclosures Now Live on the Citrix Community Site
All CVE disclosure blogs have moved to The Citrix Community Site Going forward, all CVE disclosure blogs will be published in the Security Updates tab on the Citrix Community website. CVE-2026-3055 & CVE 2026-4368 Cloud Software Group released builds on March 23, 2026 to address CVE-2026-3055 and CVE 2026-4368.
Critical [CVE-2025-7775 +2] Critical security update announced for NetScaler Gateway and NetScaler
Cloud Software Group released builds on August 26, 2025, to address three security vulnerabilities. NetScaler Gateway & NetScaler is affected by CVE-2025-7775, which has a CVSS score of 9.2. CVE-2025-7776 impacts NetScaler Gateway (CVSS 8.8), CVE-2025-8424 impacts NetScaler (CVSS 8.7). Affected products named by the advisory: NetScaler ADC; NetScaler Console.
Advisory [CVE-2025-5777] Evaluating NetScaler logs for indicators of attempted exploitation of CVE-2025-5777
In our recent update to our announcement of CVE 2025-5777, we noted that on July 10, 2025, CISA added CVE-2025-5777 to its Known Exploited Vulnerabilities Catalog. To help customers assess their security posture, we’ve provided additional guidance below. Affected product named by the advisory: Gateway.
Critical [CVE-2023-3519] NetScaler ADC: Unauthenticated remote code execution
Unauthenticated remote code execution Affected products named by the advisory: NetScaler ADC; NetScaler Gateway.