CVE-2025-7776

Published Aug 26, 2025

Last updated 21 days ago

Overview

AI description

Automated description summarized from trusted sources.

CVE-2025-7776 is a memory overflow vulnerability that affects NetScaler ADC and NetScaler Gateway when configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) with a PCoIP Profile. This vulnerability is classified as CWE-119, which is an improper restriction of operations within the bounds of a memory buffer. The vulnerability can be triggered by an attacker, leading to unpredictable or erroneous behavior, including a Denial of Service (DoS). No authentication or user interaction is required to exploit this vulnerability.

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
Source: secure@citrix.com
NVD status: Analyzed
Products: netscaler_application_delivery_controller, netscaler_gateway

Risk scores

CVSS 4.0

Type: Secondary
Base score: 8.8
Impact score: -
Exploitability score: -
Vector string: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/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
Severity: HIGH

CVSS 3.1

Type: Primary
Base score: 9.8
Impact score: 5.9
Exploitability score: 3.9
Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: CRITICAL

Weaknesses

secure@citrix.com: CWE-119

Hype score: Not currently trending

Configurations

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References

Sources include official advisories and independent security research.