Wattsense Bridge up to 6.4.0 missing protection mechanism for alternate hardware interface

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Wattsense Bridge up to 6.4.0. This affects an unknown function. Performing a manipulation results in missing protection mechanism for alternate hardware interface. This vulnerability is known as CVE-2025-26409. The attack may be carried out on the physical device. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Wattsense Bridge up to 6.4.0. It has been classified as critical. This affects an unknown code. The manipulation with an unknown input leads to a missing protection mechanism for alternate hardware interface vulnerability. CWE is classifying the issue as CWE-1299. The lack of protections on alternate paths to access control-protected assets (such as unprotected shadow registers and other external facing unguarded interfaces) allows an attacker to bypass existing protections to the asset that are only performed against the primary path. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was published by Steffen Robertz. It is possible to read the advisory at r.sec-consult.com. This vulnerability is uniquely identified as CVE-2025-26409 since 02/10/2025. Attacking locally is a requirement. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 6.4.1 eliminates this vulnerability.

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Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.3

VulDB Base Score: 6.6
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Missing protection mechanism for alternate hardware interface
CWE: CWE-1299
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Bridge 6.4.1

Timelineinfo

02/10/2025 🔍
02/11/2025 +1 days 🔍
02/11/2025 +0 days 🔍
03/18/2025 +35 days 🔍

Sourcesinfo

Advisory: r.sec-consult.com
Researcher: Steffen Robertz
Status: Confirmed

CVE: CVE-2025-26409 (🔍)
GCVE (CVE): GCVE-0-2025-26409
GCVE (VulDB): GCVE-100-295215

Entryinfo

Created: 02/11/2025 10:53
Updated: 03/18/2025 05:14
Changes: 02/11/2025 10:53 (20), 02/11/2025 10:56 (34), 03/18/2025 05:14 (1)
Complete: 🔍
Committer: mitr
Cache ID: 216::103

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