Physical Access Vulnerability in Wattsense Bridge Devices
CVE-2025-26409

6.8MEDIUM

Key Information:

Vendor

Wattsense

Status
Wattsense Bridge
Vendor
CVE Published:
11 February 2025

What is CVE-2025-26409?

A vulnerability exists in the Wattsense Bridge devices that allows unauthorized physical access to the serial interface on the PCB. This enables a person with physical access to connect to the interface, gaining entry to the bootloader and a Linux login prompt. Exploiting this access can result in a root shell on the device, posing significant security risks. Wattsense has addressed this issue in firmware versions BSP 6.4.1 and above, highlighting the importance of keeping devices updated to protect against such vulnerabilities.

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Affected Version(s)

Wattsense Bridge 0 < 6.4.1

References

https://r.sec-consult.com/wattsense
third-party-advisory
https://support.wattsense.com/hc/en-150/articles/13366066...
release-notes

CVSS V3.1

Score:
6.8
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Physical
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

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