CVE-2025-26409 - CVE House
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Status published Unknown CVE-2025-26409

Access to Bootloader and Shell Over Serial Interface

Vulnerability Description

A serial interface can be accessed with physical access to the PCB of Wattsense Bridge devices. After connecting to the interface, access to the bootloader is possible, as well as a Linux login prompt. The bootloader access can be used to gain a root shell on the device. This issue is fixed in recent firmware versions BSP >= 6.4.1.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Constantin Schieber-Knöbl | SEC Consult Vulnerability Lab
  • Stefan Schweighofer | SEC Consult Vulnerability Lab
  • Steffen Robertz | SEC Consult Vulnerability Lab

References

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Affected Vendor

Affected Software

Wattsense Bridge
Vulnerable Versions:
0

Timeline

Official Publish: February 11th, 2025
Last Modified: November 3rd, 2025
Added to House: July 22nd, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

CWE-1299 CWE-1191

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.