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Critical severity9.8CISA KEVNVD Advisory· Published Jun 25, 2025· Updated Jun 17, 2026

CVE-2025-6543

CVE-2025-6543

Description

Memory overflow vulnerability leading to unintended control flow and Denial of Service in NetScaler ADC and NetScaler Gateway when configured as Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) OR AAA virtual server

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

8
  • Citrix Systems/Netscaler Application Delivery Controller3 versions
    cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*+ 2 more
    • cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*range: >=13.1,<13.1-59.19
    • cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*range: >=13.1,<13.1-37.236
    • cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:*range: >=13.1,<13.1-37.236
  • Citrix Systems/Access Gateway2 versions
    cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*range: >=13.1,<13.1-59.19
    • (no CPE)
  • Netscaler/ADCllm-create2 versions
    (expand)+ 1 more
    • (no CPE)
    • (no CPE)range: 14.1
  • NetScaler/Gatewayv5
    Range: 14.1

Patches

Vulnerability mechanics

References

2

News mentions

0

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