CVE-2025-15387— QNO Technology｜VPN Firewall - Insufficient Entropy
Quick assessment
Affected
QNO Technology VPN Firewall
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
QNO VPN Firewall是中国台湾侠诺（QNO）公司的一个多功能安全网关。 QNO VPN Firewall存在安全特征问题漏洞，该漏洞源于熵不足，可能导致未经验证的远程攻击者通过暴力破解获取已登录用户会话并登录系统。
Possible ATT&CK Techniques 1 AI
T1110.004 · Credential Stuffing
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I. Basic Information for CVE-2025-15387
Vulnerability Information
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Vulnerability Title
QNO Technology｜VPN Firewall - Insufficient Entropy
Source: CVE Program / CVE List V5
Vulnerability Description
VPN Firewall developed by QNO Technology has a Insufficient Entropy vulnerability, allowing unauthenticated remote attackers to obtain any logged-in user session through brute-force attacks and subsequently log into the system.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
信息熵不充分
Source: CVE Program / CVE List V5
Vulnerability Title
QNO VPN Firewall 安全特征问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
QNO VPN Firewall是中国台湾侠诺（QNO）公司的一个多功能安全网关。 QNO VPN Firewall存在安全特征问题漏洞，该漏洞源于熵不足，可能导致未经验证的远程攻击者通过暴力破解获取已登录用户会话并登录系统。
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 |
|---|---|---|---|---|
| QNO Technology | VPN Firewall | 0 | - |
|
II. Public POCs for CVE-2025-15387
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Same Patch Batch · QNO Technology · 2025-12-31 · 3 CVEs total
| CVE-2025-15389 | 8.8 HIGH | QNO Technology｜VPN Firewall - OS Command Injection |
| CVE-2025-15388 | 8.8 HIGH | QNO Technology｜VPN Firewall - OS Command Injection |