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VulnerabilityPublished Updated

CVE-2025-26410: The firmware of all Wattsense Bridge devices contain the same hard-coded user and root credentials

Source GCVE Database

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Authoritative record:CVE-2025-26410· Critical 9.8

Not known to be exploited · CVSS 9.8 Critical.

Data as of 30 Oct 2026, 16:04 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CISA-ADPCVSS 3.19.8
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 11 Feb 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: 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 30 Oct 2026.

What to do

AI-suggested

Upgrade all Wattsense Bridge devices to firmware version BSP 6.4.1 or later, where the hard-coded backdoor user has been removed. No other mitigation is indicated or required once the device is updated to a fixed firmware version.

Description

All Wattsense Bridge devices have firmware containing identical hard-coded user and root credentials. The user password can be recovered through password cracking, allowing unauthorized access via the device's serial interface login shell. This backdoor user was removed starting with firmware version BSP 6.4.1. The vulnerability has a critical severity with a CVSS score of 9.8.

References

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