CVE-2025-6543 1

Vulnerability (CVE)

CVE-2025-6543: Citrix Net Scaler ADC and Gateway Buffer Overflow Vulnerability

Known Exploited Vulnerabilities CISA KEV Catalog Jun 30, 2025

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.

Vulnerabilities & Patching