CVE-2025-6543

Citrix NetScaler ADC and Gateway Buffer Overflow Vulnerability
10.4%
EPSS
96%
Percentile
Yes
Known exploited
0
APAC news · 90d
Summary

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.

Vendor
Citrix
Product
NetScaler ADC and Gateway
Added to KEV
Jun 30, 2025
Remediation due
Jul 21, 2025 (US federal deadline)
Ransomware use
Not known
Weakness
CWE-119
EPSS
10.4% as of Nov 12
In the news
  • No Asia-Pacific article names this CVE yet.
Linked
Actors named alongside it:
none
Incidents exploiting it:
  • none recorded