CVE-2025-26408: Unprotected JTAG Interface

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-02-11 · updated 2026-06-17
Weakness: CWE-1191

Description

The JTAG interface of Wattsense Bridge devices can be accessed with physical access to the PCB. After connecting to the interface, full access to the device is possible. This enables an attacker to extract information, modify and debug the device's firmware. All known versions are affected.

Affected products

Wattsense Bridge: all versions

References

https://r.sec-consult.com/wattsense
https://support.wattsense.com/hc/en-150/articles/13366066529437-Release-Notes
http://seclists.org/fulldisclosure/2025/Feb/9

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