Unrated severityCISA KEVNVD Advisory· Published Jun 25, 2025· Updated Feb 26, 2026

Memory overflow vulnerability leading to unintended control flow and Denial of Service

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

Affected products

NetScaler/ADCv5
Range: 14.1
NetScaler/Gatewayv5
Range: 14.1

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

support.citrix.com/support-home/kbsearch/articlemitre

News mentions

No linked articles in our index yet.

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