What is the severity of CVE-2025-26409?

CVE-2025-26409 is considered a high severity vulnerability due to the potential for unauthorized root access to the device.

How do I fix CVE-2025-26409?

To mitigate CVE-2025-26409, restrict physical access to Wattsense Bridge devices to prevent exploitation of the serial interface.

What devices are affected by CVE-2025-26409?

CVE-2025-26409 specifically affects Wattsense Bridge devices running version 6.4.1 or earlier.

What are the consequences of CVE-2025-26409?

CVE-2025-26409 allows an attacker with physical access to gain root access, potentially compromising the integrity and confidentiality of the device.

Is CVE-2025-26409 a remote exploit?

No, CVE-2025-26409 requires physical access to the Wattsense Bridge device to exploit the vulnerability.

Vulnerability/
CVE-2025-26409

medium

6.8

CWE

1299 1191

EPSS

0.027%

11/2/2025

17/3/2025

CVE-2025-26409: Access to Bootloader and Shell Over Serial Interface

First published: Tue Feb 11 2025(Updated: )

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.

Credit: 551230f0-3615-47bd-b7cc-93e92e730bbf

Affected Software	Affected Version	How to fix
Wattsense Bridge	>6.4.1

Remedy

This issue is fixed in recent firmware versions BSP >= 6.4.1.

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2025-26409?
CVE-2025-26409 is considered a high severity vulnerability due to the potential for unauthorized root access to the device.
How do I fix CVE-2025-26409?
To mitigate CVE-2025-26409, restrict physical access to Wattsense Bridge devices to prevent exploitation of the serial interface.
What devices are affected by CVE-2025-26409?
CVE-2025-26409 specifically affects Wattsense Bridge devices running version 6.4.1 or earlier.
What are the consequences of CVE-2025-26409?
CVE-2025-26409 allows an attacker with physical access to gain root access, potentially compromising the integrity and confidentiality of the device.
Is CVE-2025-26409 a remote exploit?
No, CVE-2025-26409 requires physical access to the Wattsense Bridge device to exploit the vulnerability.

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