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TI-2025-19367 Aliases CVE-2025-26410GHSA-jj4x-g447-hm4m

Weak hard-coded credentials in Wattsense Bridge

Priority HIGH 82CWE-798Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-798.

Summary

The firmware of all Wattsense Bridge devices contain the same hard-coded user and root credentials. The user password can be easily recovered via password cracking attempts. The recovered credentials can be used to log into the device via the login shell that is exposed by the serial interface. The backdoor user has been removed in firmware BSP >= 6.4.1.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00718 54th percentileScored 2026-11-07
Fix Fixed Wattsense Bridge (Wattsense): 6.4.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
WattsenseWattsense Bridgebefore 6.4.16.4.1Patch availableCNA
  • Wattsense Bridge VendorWattsense Affected before 6.4.1 Fixed in 6.4.1 Patch available CNA

Remediation

  • Fix · CNA Wattsense Bridge (Wattsense) Fixed in 6.4.1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Wattsense Bridge 6.4.1

    2 records Highest priority Priority HIGH 2 HIGH

    Other records, highest priority first

    • TI-2025-19366 Access to Bootloader and Shell Over Serial InterfacePriority HIGH 65
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-26410
  2. 2026-10-03 Alias added: GHSA-jj4x-g447-hm4m

References

Advisory 1

Other 1

  • TI-2025-19368 Authenticated Arbitrary Python File Upload via Plugin Manager CVSS 3.1HIGH 8.8
  • TI-2025-19366 Access to Bootloader and Shell Over Serial Interface CVSS 3.1MEDIUM 6.8
  • TI-2025-19365 Unprotected JTAG Interface CVSS 3.1MEDIUM 6.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences