CVE-2025-7775

Published: Aug 26, 2025Modified: Jun 17, 2026CISA KEV

9.2

Vector

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

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:XShow less

Source: secure@citrix.com (Secondary)

Description

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

Affected (8)

Products: Citrix: Netscaler Application Delivery Controller, Netscaler Gateway

Citrix

2 products

Netscaler Application Delivery Controller

Netscaler Gateway

Configuration A

6 vulnerable

Vulnerable Software	Affected Versions
Citrix Netscaler Application Delivery Controller	From 13.1 to 13.1-59.22
Citrix Netscaler Application Delivery Controller	From 14.1 to 14.1-47.48
Citrix Netscaler Application Delivery Controller	From 12.1 to 12.1-55.330
Citrix Netscaler Application Delivery Controller	From 13.1 to 13.1-37.241
Citrix Netscaler Application Delivery Controller	From 12.1 to 12.1-55.330
Citrix Netscaler Application Delivery Controller	From 13.1 to 13.1-37.241

Configuration B

2 vulnerable

Vulnerable Software	Affected Versions
Citrix Netscaler Gateway	From 13.1 to 13.1-59.22
Citrix Netscaler Gateway	From 14.1 to 14.1-47.48

Related CWEs

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

References (2)

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

Source: secure@citrix.com

Vendor Advisory

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-7775

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

US Government Resource

Timeline

No history available yet.