Wattsense Bridge JTAG Interface on-chip debug and test interface with improper access control

CVSS Meta Temp Score
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CTI Interest Score
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6.8$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Wattsense Bridge. This affects an unknown part of the component JTAG Interface. Such manipulation leads to on-chip debug and test interface with improper access control. This vulnerability is referenced as CVE-2025-26408. The attack can be executed directly on the physical device. No exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Wattsense Bridge (affected version not known). Affected by this issue is some unknown functionality of the component JTAG Interface. The manipulation with an unknown input leads to a on-chip debug and test interface with improper access control vulnerability. Using CWE to declare the problem leads to CWE-1191. The chip does not implement or does not correctly perform access control to check whether users are authorized to access internal registers and test modes through the physical debug/test interface. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was published by Steffen Robertz | Sec Consult Vulnerability Lab. The advisory is shared for download at r.sec-consult.com. This vulnerability is handled as CVE-2025-26408 since 02/10/2025. The exploitation is known to be easy. The attack needs to be approached locally. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.8

VulDB Base Score: 6.8
VulDB Temp Score: 6.8
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: On-chip debug and test interface with improper access control
CWE: CWE-1191
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/10/2025 🔍
02/11/2025 +1 days 🔍
02/11/2025 +0 days 🔍
03/22/2025 +39 days 🔍

Sourcesinfo

Advisory: r.sec-consult.com
Researcher: Steffen Robertz | Sec Consult Vulnerability Lab
Status: Not defined

CVE: CVE-2025-26408 (🔍)
GCVE (CVE): GCVE-0-2025-26408
GCVE (VulDB): GCVE-100-295220

Entryinfo

Created: 02/11/2025 11:16
Updated: 03/22/2025 17:22
Changes: 02/11/2025 11:16 (18), 02/11/2025 11:19 (34), 03/22/2025 17:22 (1)
Complete: 🔍
Committer: mitr
Cache ID: 216::103

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