CVE-2026-2537: Comfast CF-E4 HTTP POST Request mbox-config command injection

Severity: high (CVSS 7.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 28.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-02-16 · updated 2026-06-17
Weakness: CWE-74

Description

A vulnerability was identified in Comfast CF-E4 2.6.0.1. This impacts an unknown function of the file /cgi-bin/mbox-config?method=SET&section=ntp_timezone of the component HTTP POST Request Handler. Such manipulation of the argument timestr leads to command injection. The attack may be launched remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

Comfast CF-E4: 2.6.0.1

References

https://github.com/cha0yang1/COMFAST/blob/main/RCE.md
https://vuldb.com/?ctiid.346125
https://vuldb.com/?id.346125
https://vuldb.com/?submit.749196

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