CVE-2025-6543: Citrix NetScaler ADC and Gateway Buffer Overflow
Citrix NetScaler ADC and Gateway Buffer Overflow Vulnerability. Citrix NetScaler ADC and Gateway contain a buffer overflow vulnerability leading to unintended control flow and Denial of Service. NetScaler must be configured as Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) OR AAA virtual server.
- CISA KEV-listed (remediation due 2025-07-21)
- EPSS 1.1% (78.1% percentile)