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CVE-2026-77683criticalCWE-74CWE-77

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

48Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 9.4epss 1.5%
exploitation probability
1.5%top 27% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
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.
CVSS: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
Affected products
Comfast · CF-N1-S
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.