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Status published
Critical
CVE-2025-6543
Memory overflow vulnerability leading to unintended control flow and Denial of Service
Vulnerability 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
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
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Affected Vendor
NetScaler
View all reports →Affected Software
ADC, Gateway
Vulnerable Versions:
14.1, 13.1, 13.1 FIPS and NDcPP
Timeline
Official Publish:
June 25th, 2025
Last Modified:
February 26th, 2026
Added to House:
July 22nd, 2026