CVE-2025-7775

26.08.2025, 13:15

Memory overflow vulnerability leading to Remote Code Execution and/or Denial of Service in NetScaler ADC and NetScaler Gateway whenNetScaler 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

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	NIST	9.8 CRITICAL	NETWORK	LOW	NONE	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Citrix	CNA	---				---
CISA-ADP	ADP	---				---

Base Score

CVSS 3.x

EPSS Score

Percentile: 92%

Vendor	Product	Version
citrix	netscaler_application_delivery_controller	12.1 ≤ 𝑥 < 12.1-55.330
citrix	netscaler_application_delivery_controller	12.1 ≤ 𝑥 < 12.1-55.330
citrix	netscaler_application_delivery_controller	13.1 ≤ 𝑥 < 13.1-37.241
citrix	netscaler_application_delivery_controller	13.1 ≤ 𝑥 < 13.1-37.241
citrix	netscaler_application_delivery_controller	13.1 ≤ 𝑥 < 13.1-59.22
citrix	netscaler_application_delivery_controller	14.1 ≤ 𝑥 < 14.1-47.48
citrix	netscaler_gateway	13.1 ≤ 𝑥 < 13.1-59.22
citrix	netscaler_gateway	14.1 ≤ 𝑥 < 14.1-47.48

𝑥

= Vulnerable software versions

Common Weakness Enumeration

CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.

Vulnerability Media Exposure

References

https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX694938