CVE-2026-77683

CRITICAL 9.9

Comfast CF-N1-S mbox-config system command injection

CVSS Score

9.9

EPSS Score

0.0%

EPSS Percentile

0th

A security flaw has been discovered in Comfast CF-N1-S 2.6.0.1. Affected by this issue is the function system of the file /cgi-bin/mbox-config?method=SET&section=ntp_timezone. The manipulation of the argument timestr results in command injection. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks.

CWE	CWE-77 CWE-74
Vendor	comfast
Product	cf-n1-s
Published	Aug 21, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Comfast / CF-N1-S

2.6.0.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/394033 vuldb.com: https://vuldb.com/vuln/394033/cti vuldb.com: https://vuldb.com/cve/CVE-2026-77683 vuldb.com: https://vuldb.com/submit/881058 github.com: https://github.com/AdminSafe/CVE/issues/8

Credits

🔍 010hex (VulDB User)