High severity · published Feb 16, 2026
CVE-2026-2537
Comfast CF-E4 HTTP POST Request mbox-config command injection
7.2
CVSS
28%
EPSS
No
On KEV
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§ion=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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)28.0% · higher than 98% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CF
CF-E4 · Comfast
2.6.0.1 · source: vendor
CF
Cf-e4 Firmware · Comfast
2.6.0.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-2537
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-2537
Exploit
https://github.com/cha0yang1/COMFAST/blob/main/RCE.md
Permissions Required
https://vuldb.com/?ctiid.346125
Third Party Advisory
https://vuldb.com/?id.346125
Third Party Advisory
https://vuldb.com/?submit.749196
