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CVE-2026-77148— Comfast CF-N1-S Web Management mbox-config sub_44B50C stack-based overflow

Quick assessment

Affected
Comfast CF-N1-S
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Comfast CF-N1-S是中国Comfast公司的一款无线网络连接设备。 Comfast CF-N1-S 2.6.0.1版本存在缓冲区错误漏洞，该漏洞源于Web Management组件中文件/cgi-bin/mbox-config?method=SET&section=ptest_channel的函数sub_44B50C存在栈缓冲区溢出，攻击者可远程发起攻击。

CVSS 9.9 · Critical EPSS 0.79% · P56

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Comfast CF-N1-S 2.6.0.1 affected
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I. Basic Information for CVE-2026-77148

Vulnerability Information
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Vulnerability Title
Comfast CF-N1-S Web Management mbox-config sub_44B50C stack-based overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in Comfast CF-N1-S 2.6.0.1. This impacts the function sub_44B50C of the file /cgi-bin/mbox-config?method=SET&section=ptest_channel of the component Web Management. The manipulation results in stack-based buffer overflow. The attack can be launched remotely. The exploit has been made public and could be used.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Comfast CF-N1-S 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Comfast CF-N1-S是中国Comfast公司的一款无线网络连接设备。 Comfast CF-N1-S 2.6.0.1版本存在缓冲区错误漏洞，该漏洞源于Web Management组件中文件/cgi-bin/mbox-config?method=SET&section=ptest_channel的函数sub_44B50C存在栈缓冲区溢出，攻击者可远程发起攻击。
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
Comfast CF-N1-S 2.6.0.1 cpe:2.3:a:comfast:cf-n1-s:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-77148

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 5110 chars
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In-depth vulnerability mechanism
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POC zip download
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III. Intelligence Information for CVE-2026-77148

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Vendor Advisories for CVE-2026-77148 (3)

Exploits & Public PoCs for CVE-2026-77148 (1)

Same Patch Batch · Comfast · 2026-08-20 · 3 CVEs total

CVE-2026-77022 9.9 CRITICAL Comfast CF-N1-S SSID Configuration mbox-config sub_44B438 stack-based overflow
CVE-2026-77004 7.4 HIGH Comfast CF-N1-S mbox-config sprintf command injection

IV. Related Vulnerabilities

Same product: CF-N1-S
Same vendor: Comfast
Same weakness: CWE-121

V. Comments for CVE-2026-77148

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