by Kastro
Paper/Archive/CVE-2026-77683

CVE-2026-77683

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

EPSS 3%public exploitCVSS 9.9
critical.is priorityof 100
57
CVSS 9.9 (CNA)9.9 / 10 × 3029.7Not in CISA KEV+300.0EPSS percentile 86.9.869 × 2017.4Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
CF-N1-S2.6.0.1–CNA

Scores by source

VulDB (CNA)9.9CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
VulDB (CNA)9.9CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
VulDB (CNA)9.4CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
CISA ADPSSVCExploitation: poc · Automatable: no · Technical impact: total

References

writeupvuldb.com/vuln/394033refvuldb.com/vuln/394033/ctiwriteupvuldb.com/cve/CVE-2026-77683writeupvuldb.com/submit/881058exploitgithub.com/AdminSafe/CVE/issues/8