CVE-2025-12101: medium-severity vulnerability in NetScaler ADC
Cross-Site Scripting (XSS)
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
33Vexday Risk Score
Patch soon. It has a working public exploit.
ssvc Attendcvss 5.9epss 26%
Cross-Site Scripting (XSS) in NetScaler ADC and NetScaler Gateway when the appliance is configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) OR AAA virtual server
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:L/VA:L/SC:L/SI:L/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