CVE-2025-67114

critical

Description

Use of a deterministic credential generation algorithm in /ftl/bin/calc_f2 in Small Cell Sercomm SCE4255W (FreedomFi Englewood) firmware before DG3934v3@2308041842 allows remote attackers to derive valid administrative/root credentials from the device's MAC address, enabling authentication bypass and full device access.

References

https://neroteam.com/blog/freedomfi-sercomm-sce4255w-englewood

https://freedomfi.com/index.html

https://fcc.report/FCC-ID/P27-SCE4255W/4790935.pdf

Details

Source: Mitre, NVD

Published: 2026-03-19

Updated: 2026-03-24

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.00077