9.9
CRITICAL CVSS 3.1
CVE-2026-77148
Comfast CF-N1-S Web Management mbox-config sub_44B50C stack-based overflow
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.

INFO

Published Date :

Aug. 20, 2026, 7:17 p.m.

Last Modified :

Aug. 24, 2026, 4:40 p.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-77148 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Comfast cf-n1-s
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 134c704f-9b21-4f2e-91b3-4a467353bcc0
CVSS 2.0 HIGH [email protected]
CVSS 3.1 CRITICAL [email protected]
CVSS 4.0 HIGH [email protected]
Solution
Patch or update the affected device firmware to prevent stack-based buffer overflows.
  • Update device firmware to the latest version.
  • Apply vendor patches for buffer overflow vulnerabilities.
  • Restrict access to the web management interface.
  • Monitor network traffic for suspicious requests.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-77148.

URL Resource
https://github.com/AdminSafe/CVE/issues/7
https://vuldb.com/cve/CVE-2026-77148
https://vuldb.com/submit/880910
https://vuldb.com/vuln/393733
https://vuldb.com/vuln/393733/cti
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-77148 is associated with the following CWEs:

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-77148 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-77148 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Aug. 20, 2026

    Action Type Old Value New Value
    Added SSVC {'id': 'CVE-2026-77148', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-08-20T19:46:38.830086Z'}
  • New CVE Received by [email protected]

    Aug. 20, 2026

    Action Type Old Value New Value
    Added Affected [{'cpes': ['cpe:2.3:a:comfast:cf-n1-s:*:*:*:*:*:*:*:*'], 'vendor': 'Comfast', 'modules': ['Web Management'], 'product': 'CF-N1-S', 'versions': [{'status': 'affected', 'version': '2.6.0.1'}]}]
    Added 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.
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
    Added CVSS V2 (AV:N/AC:L/Au:S/C:C/I:C/A:C)
    Added CWE CWE-119
    Added CWE CWE-121
    Added Reference https://github.com/AdminSafe/CVE/issues/7
    Added Reference https://vuldb.com/cve/CVE-2026-77148
    Added Reference https://vuldb.com/submit/880910
    Added Reference https://vuldb.com/vuln/393733
    Added Reference https://vuldb.com/vuln/393733/cti
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.