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CVE-2025-7776— Memory overflow vulnerability leading to unpredictable or erroneous behavior and Denial of Service

Quick assessment

Affected
NetScaler ADC
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Citrix Systems ADC and NetScaler Gateway是美国思杰系统（Citrix Systems）公司的一款应用交付控制器。 Citrix Systems ADC and NetScaler Gateway存在安全漏洞，该漏洞源于内存溢出，可能导致不可预测行为或拒绝服务。

AI Predicted 7.5 Difficulty: Moderate EPSS 7.72% · P94

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2025-7776

Vulnerability Information
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Vulnerability Title
Memory overflow vulnerability leading to unpredictable or erroneous behavior and Denial of Service
Source: CVE Program / CVE List V5
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: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
内存缓冲区边界内操作的限制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Citrix Systems ADC and NetScaler Gateway 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Citrix Systems ADC and NetScaler Gateway是美国思杰系统（Citrix Systems）公司的一款应用交付控制器。 Citrix Systems ADC and NetScaler Gateway存在安全漏洞，该漏洞源于内存溢出，可能导致不可预测行为或拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
NetScaler ADC 14.1 ~ 47.48 -
NetScaler Gateway 14.1 ~ 47.48 -

II. Public POCs for CVE-2025-7776

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III. Intelligence Information for CVE-2025-7776

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Vendor Pages for CVE-2025-7776 (1)

Same Patch Batch · NetScaler · 2025-08-26 · 3 CVEs total

CVE-2025-7775 Memory overflow vulnerability leading to Remote Code Execution and/or Denial of Service
CVE-2025-8424 Improper access control on the NetScaler Management Interface

IV. Related Vulnerabilities

Same product: ADC
Same vendor: NetScaler
Same weakness: CWE-119

V. Comments for CVE-2025-7776

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