THREATPORT/VULNERABILITY/CVE-2026-2534
MEDIUM SEVERITY

CVE-2026-2534

Cf N1 Firmware vulnerability

CVSS
6.3
EPSS
13.0%
EPSS pct
96th
Exploited
No known
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&section=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.
Affected vendor
Comfast
Affected product
Cf N1 Firmware
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Weakness type (CWE)
Published
2026-02-16

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring low privileges, no user interaction. Successful exploitation leads to low impact to confidentiality, low impact to integrity, low impact to availability.

Its EPSS score of 13.0% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 96% of all scored CVEs.

Check your external exposure to CVE-2026-2534

  • Confirm whether Comfast Cf N1 Firmware is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2026-2534.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2026-2534

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