CVE-2025-7776: high-severity vulnerability in NetScaler ADC
Memory overflow vulnerability leading to unpredictable or erroneous behavior and Denial of Service
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.8epss 9.1%
Memory overflow vulnerability leading to unpredictable or erroneous behavior and Denial of Service in NetScaler ADC and NetScaler Gateway when NetScaler is configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) with PCoIP Profile bounded to it
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:L
Related CVEs — NetScaler ADC
In the same product, most dangerous first.
CVE-2025-5777CRITICALNetScaler ADC and NetScaler Gateway - Insufficient input validation leading to memory overreadEPSS 100.0%KEVCVE-2026-3055CRITICALInsufficient input validation leading to memory overreadEPSS 91.5%KEVCVE-2026-19490CRITICALNetScaler ADC and NetScaler Gateway Security Bulletin for CVE-2026-19490EPSS 33.3%KEVCVE-2025-7775CRITICALMemory overflow vulnerability leading to Remote Code Execution and/or Denial of ServiceEPSS 20.7%KEVCVE-2026-88779HIGHMemory overflow vulnerability leading to Denial of ServiceEPSS 11.4%KEVCVE-2025-6543CRITICALMemory overflow vulnerability leading to unintended control flow and Denial of ServiceEPSS 10.4%KEV