CVE-2025-26409 json
Access to Bootloader and Shell Over Serial Interface
published 2025-02-11 20 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-4192
- cvss
- 6.8
- 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 26%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- Wattsense Wattsense Bridge 6.4.1
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- 20 mo ago
Exploit prediction
0.33% chance of exploitation in the next 30 days, higher than 26% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 6.8 | CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 6.8 | CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Wattsense Wattsense Bridge
Classification
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-2025-26409
- NVD CVE-2025-26409
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