CVE-2025-26408 json
Unprotected JTAG Interface
published last yr. modified 4mo ago also EUVD-2025-4191
- cvss
- 6.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 22%
- public exploits
- 0
- none known
Summary
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.
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- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- last yr.
Exploit prediction
0.29% chance of exploitation in the next 30 days, higher than 22% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 6.1 | CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
| CNA | 3.1 | 6.1 | CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
Affected products
- Wattsense Wattsense Bridge
Classification
- Weakness
-
- CWE-1191 On-Chip Debug and Test Interface With Improper Access Control
References
-
r.sec-consult.com
/wattsense
third-party-advisory
-
support.wattsense.com
/hc/en-150/articles/13366066529437-Release-Notes
release-notes
- seclists.org /fulldisclosure/2025/Feb/9
Sources
- CVE List CVE-2025-26408
- NVD CVE-2025-26408
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