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CVE-2025-11847

Quick assessment

Affected
Zyxel VMG3625-T50B firmware
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.

Zyxel VMG3625-T50B和Zyxel WX3100-T0都是中国合勤（Zyxel）公司的产品。Zyxel VMG3625-T50B是一款 WiFi 设备。Zyxel WX3100-T0是一个无线网桥。 Zyxel VMG3625-T50B 5.50(ABPM.9.6)C0及之前版本和Zyxel WX3100-T0 5.50(ABVL.4.8)C0及之前版本存在代码问题漏洞，该漏洞源于IP设置CGI程序存在空指针取消引用，可能导致经过身份验证的管理员攻击者通过发送特制HTTP请求触发拒绝服务条件

CVSS 4.9 · Medium EPSS 1.77% · P77

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2025-11847

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A null pointer dereference vulnerability in the IP settings CGI program of the Zyxel VMG3625-T50B firmware versions through 5.50(ABPM.9.6)C0 and the Zyxel WX3100-T0 firmware versions through 5.50(ABVL.4.8)C0 could allow an authenticated attacker with administrator privileges to trigger a denial-of-service (DoS) condition by sending a crafted HTTP request.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
Zyxel VMG3625-T50B和Zyxel WX3100-T0 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zyxel VMG3625-T50B和Zyxel WX3100-T0都是中国合勤（Zyxel）公司的产品。Zyxel VMG3625-T50B是一款 WiFi 设备。Zyxel WX3100-T0是一个无线网桥。 Zyxel VMG3625-T50B 5.50(ABPM.9.6)C0及之前版本和Zyxel WX3100-T0 5.50(ABVL.4.8)C0及之前版本存在代码问题漏洞，该漏洞源于IP设置CGI程序存在空指针取消引用，可能导致经过身份验证的管理员攻击者通过发送特制HTTP请求触发拒绝服务条件
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
Zyxel VMG3625-T50B firmware <= 5.50(ABPM.9.6)C0 -
Zyxel WX3100-T0 firmware <= 5.50(ABVL.4.8)C0 -

II. Public POCs for CVE-2025-11847

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III. Intelligence Information for CVE-2025-11847

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Same Patch Batch · Zyxel · 2026-02-24 · 7 CVEs total

CVE-2025-13942 9.8 CRITICAL Zyxel EX3510-B0 操作系统命令注入漏洞
CVE-2025-13943 8.8 HIGH Zyxel EX3301-T0 操作系统命令注入漏洞
CVE-2026-1459 7.2 HIGH Zyxel VMG3625-T50B 操作系统命令注入漏洞
CVE-2025-11846 4.9 MEDIUM Zyxel VMG3625-T50B和Zyxel WX3100-T0 代码问题漏洞
CVE-2025-11845 4.9 MEDIUM Zyxel VMG3625-T50B和Zyxel WX3100-T0 代码问题漏洞
CVE-2025-11848 4.9 MEDIUM Zyxel VMG3625-T50B和Zyxel WX3100-T0 代码问题漏洞

IV. Related Vulnerabilities

Same product: VMG3625-T50B firmware
Same vendor: Zyxel
Same weakness: CWE-476

V. Comments for CVE-2025-11847

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