CVE-2025-7775

critical · 9.2Actively exploited

On the CISA Known Exploited Vulnerabilities catalog

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Added 2025-08-26Remediation due 2025-08-28

Memory overflow vulnerability leading to Remote Code Execution and/or Denial of Service in NetScaler ADC and NetScaler Gateway when NetScaler is configured as Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server (OR) NetScaler ADC and NetScaler Gateway 13.1, 14.1, 13.1-FIPS and NDcPP: LB virtual servers of type (HTTP, SSL or HTTP_QUIC) bound with IPv6 services or servicegroups bound with IPv6 servers (OR) NetScaler ADC and NetScaler Gateway 13.1, 14.1, 13.1-FIPS and NDcPP: LB virtual servers of type (HTTP, SSL or HTTP_QUIC) bound with DBS IPv6 services or servicegroups bound with IPv6 DBS servers (OR) CR virtual server with type HDX

9.2

CVSS

19.6%

EPSS (exploit prob.)

97th

EPSS percentile

2025-08-26

Published

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weaknesses

CWE-119

Affected products

Vendor	Product	Affected versions
citrix	netscaler_application_delivery_controller	>= 12.1, < 12.1-55.330
citrix	netscaler_application_delivery_controller	>= 12.1, < 12.1-55.330
citrix	netscaler_application_delivery_controller	>= 13.1, < 13.1-37.241
citrix	netscaler_application_delivery_controller	>= 13.1, < 13.1-37.241
citrix	netscaler_application_delivery_controller	>= 13.1, < 13.1-59.22
citrix	netscaler_application_delivery_controller	>= 14.1, < 14.1-47.48
citrix	netscaler_gateway	>= 13.1, < 13.1-59.22
citrix	netscaler_gateway	>= 14.1, < 14.1-47.48

Check a specific version with /api/v1/cve/match.

References

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2025-7775