High severity · published Feb 16, 2026
CVE-2026-2534
Comfast CF-N1 V2 mbox-config sub_44AC4C command injection
8.8
CVSS
15%
EPSS
No
On KEV
Description
A vulnerability has been found in Comfast CF-N1 V2 2.6.0.2. The affected element is the function sub_44AC4C of the file /cgi-bin/mbox-config?method=SET§ion=ptest_bandwidth. The manipulation of the argument bandwidth leads to command injection. The attack can be initiated remotely. The exploit has been disclosed to the public and may 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:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)15.0% · higher than 97% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CV
CF-N1 V2 · Comfast
2.6.0.2 · source: vendor
CF
Cf-n1 Firmware · Comfast
2.6.0.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-2534
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-2534
Exploit
https://github.com/jinhao118/cve/blob/main/ComFast%20Router_1.md
Permissions Required
https://vuldb.com/?ctiid.346122
Third Party Advisory
https://vuldb.com/?id.346122
Third Party Advisory
https://vuldb.com/?submit.748783
More from CF-N1 V2
8.8
CVE-2026-2535
Comfast CF-N1 V2 mbox-config sub_44AB9C command injection