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

CVSS 9.9 · Critical

Possible ATT&CK Techniques 1AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProductVersion RangeStatus
ComfastCF-N1-S2.6.0.1affected
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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

Affected Products

VendorProductAffected VersionsCPESubscribe
ComfastCF-N1-S 2.6.0.1 cpe:2.3:a:comfast:cf-n1-s:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-77148

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium
Qwen3.6-35B-A3B · 5110 chars
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III. Intelligence Information for CVE-2026-77148

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Vendor Advisories for CVE-2026-77148 (1)

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

CVE-2026-770229.9 CRITICALComfast CF-N1-S SSID Configuration mbox-config sub_44B438 stack-based overflow
CVE-2026-770047.4 HIGHComfast 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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