CVE-2025-7776
Critical
Description
Memory overflow vulnerability leading to unpredictable or erroneous behavior and Denial of Service in NetScaler ADC and NetScaler Gateway when NetScaler is configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) with PCoIP Profile bounded to it
SeverityCritical
CVSS9.8
Exploit probability—
Product
Citrix Netscaler Application Delivery Controller
PublishedAug 26, 2025
First seenAug 26, 2025
Weakness typeCWE-119Memory buffer bounds error
How to fix
Update
- citrix netscaler_application_delivery_controller12.1-55.330, 13.1-37.241, 13.1-59.22, 14.1-47.48 or later
- citrix netscaler_gateway13.1-59.22, 14.1-47.48 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| citrix netscaler_application_delivery_controller | 12.1 ≤ v < 12.1-55.330, 13.1 ≤ v < 13.1-37.241, 13.1 ≤ v < 13.1-59.22, 14.1 ≤ v < 14.1-47.48 | 12.1-55.330, 13.1-37.241, 13.1-59.22, 14.1-47.48 |
| citrix netscaler_gateway | 13.1 ≤ v < 13.1-59.22, 14.1 ≤ v < 14.1-47.48 | 13.1-59.22, 14.1-47.48 |
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