Citrix NetScaler ADC and Gateway: NetScaler ADC and Gateway Buffer Overflow Vulnerability ยท updates https://pwn.watch/i/citrix-netscaler-adc-and-gateway-cve-2025-6543 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. Added to CISA KEV on 2025-06-30. en Mon, 30 Jun 2025 00:00:00 GMT Citrix NetScaler ADC and Gateway: NetScaler ADC and Gateway Buffer Overflow Vulnerability: CISA added CVE-2025-6543 to the KEV catalog (due 2025-07-21). https://pwn.watch/i/citrix-netscaler-adc-and-gateway-cve-2025-6543 https://pwn.watch/i/citrix-netscaler-adc-and-gateway-cve-2025-6543#2025-06-30-00adafa1 Mon, 30 Jun 2025 00:00:00 GMT critical <p>Citrix NetScaler ADC and Gateway: NetScaler ADC and Gateway Buffer Overflow Vulnerability: CISA added CVE-2025-6543 to the KEV catalog (due 2025-07-21).</p>