CVE-2026-49318
Incorrect Boot Authentication Bypass in Indian Motorcycle Scout Bobber + Tech 2025 Infotainment
Publication date: 2026-05-29
Last updated on: 2026-05-29
Assigner: Automotive Security Research Group (ASRG)
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| indian_motorcycle | scout_bobber | 2025 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-696 | The product performs multiple related behaviors, but the behaviors are performed in the wrong order in ways that may produce resultant weaknesses. |
| CWE-636 | When the product encounters an error condition or failure, its design requires it to fall back to a state that is less secure than other options that are available, such as selecting the weakest encryption algorithm or using the most permissive access control restrictions. |
| CWE-754 | The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability involves the Infotainment / Digital Round display system in the Indian Motorcycle Scout Bobber + Tech 2025 model year. The system uses the presence of Wireless Control Module (WCM) traffic during its boot window to determine if an immobilizer is installed. If no WCM messages are detected, the system skips the PIN entry screen and directly shows the normal user interface. An attacker on an adjacent network can silence the WCM during this boot window, for example by using a CAN bus-off technique, causing the system to bypass the PIN entry screen and unlock the Infotainment without the PIN ever being entered.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
The provided information does not specify any direct impact of this vulnerability on compliance with common standards and regulations such as GDPR or HIPAA.
How can this vulnerability be detected on my network or system? Can you suggest some commands?
This vulnerability involves the Infotainment system of the Indian Motorcycle Scout Bobber + Tech 2025 model skipping the PIN entry screen if no Wireless Control Module (WCM) traffic is detected during its boot window. Detection would involve monitoring the presence or absence of WCM messages on the CAN bus during the Infotainment boot process.
To detect this on your network or system, you can capture and analyze CAN bus traffic during the boot window of the Infotainment system to verify if WCM messages are present. Absence of these messages during this critical period could indicate the vulnerability is being exploited or the system is exposed.
Specific commands depend on your hardware and software tools for CAN bus monitoring. For example, using Linux with SocketCAN tools, you might run commands like:
- candump can0
- canplayer -I <logfile> to replay and analyze traffic
You would look for the presence or absence of WCM-related messages during the Infotainment boot sequence. However, exact message IDs and timing details have been withheld pending vendor remediation, so detailed detection signatures are not currently available.
What immediate steps should I take to mitigate this vulnerability?
Immediate mitigation involves ensuring that the Wireless Control Module (WCM) messages are reliably present during the Infotainment system boot window to prevent bypassing the PIN entry screen.
Since the vulnerability arises from the Infotainment system skipping the PIN screen if no WCM traffic is detected, steps to prevent silencing or blocking WCM messages on the CAN bus should be taken.
This may include:
- Monitoring and preventing CAN bus-off conditions that could silence the WCM.
- Ensuring physical and logical security of the CAN bus to prevent attackers from interfering with WCM traffic.
- Applying vendor patches or updates once available to correct the behavior order in the Infotainment system.
Until vendor remediation is released, restricting access to the CAN bus and monitoring for abnormal traffic patterns are recommended.
How can this vulnerability impact me? :
This vulnerability allows an attacker who is on an adjacent network to bypass the PIN entry screen of the motorcycle's Infotainment system. This means the attacker can gain unauthorized access to the Infotainment system without knowing the PIN, potentially allowing them to control or manipulate the system's functions that are normally protected.