Vulnerability · Published Feb 16, 2026 · Assigned by VulDB

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

Medium 4.7

In plain English

A medium-severity command injection in CF-E4 from Comfast. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 28.0% (higher than 98% of all known vulnerabilities).

Severity (CVSS 3.1)4.7Medium

Exploit odds (30 days)28.0%top 1.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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 (as reported)

Vendor	Product	Versions
Comfast	CF-E4	2.6.0.1

Weakness: CWE-77, CWE-74 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

References

VDB-346125 | Comfast CF-E4 HTTP POST Request mbox-config command injection vdb-entry, technical-description
VDB-346125 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
Submit #749196 | COMFAST CF-E4 (EC200A) 2.6.0.1 Command Injection third-party-advisory
https://github.com/cha0yang1/COMFAST/blob/main/RCE.md exploit