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VulnerabilityPublished Updated

CVE-2025-67114: Small Cell Sercomm SCE4255W firmware · Use of Weak Credentials

Source CVE Database V5

0

Not known to be exploited · CVSS 9.8 Critical.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.5% chance of exploitation in 30 days – higher than 44% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 19 Mar 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

AI-suggested

  1. Immediate mitigation involves isolating affected devices from untrusted networks to reduce exposure until a patch is available.
  2. Monitor network traffic for unusual access patterns or unauthorized administrative logins to detect potential exploitation attempts.
  3. Implement network segmentation to limit the impact of a compromised device and restrict administrative access to trusted management networks only.
  4. Use MAC address filtering and strong network access controls to reduce the risk of attackers obtaining device MAC addresses easily.
  5. Engage with the vendor to obtain firmware updates or patches addressing this vulnerability as soon as they are released.
  6. Consider deploying additional authentication mechanisms or VPN tunnels for device management interfaces to add layers of security beyond the vulnerable credential generation.
  7. Maintain an inventory of all affected devices and prioritize remediation efforts based on exposure and criticality.
  8. Conduct regular security assessments and penetration testing focused on small cell infrastructure to identify and remediate similar weaknesses.

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

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