CVE-2026-49316

MEDIUM

Indian Scout Bobber 2025 WCM CAN bus-off attack silently bypasses anti-theft shutdown

Title source: cna
STIX 2.1

Description

Expected behavior violation in the in-vehicle network of the Indian Motorcycle Scout Bobber + Tech 2025 model year allows an adjacent-network attacker to bypass the motorcycle's anti-theft shutdown by forcing the Wireless Control Module (WCM) into the CAN bus-off state. Using a well-known CAN error-frame injection technique against a periodic WCM transmission, the attacker drives the WCM CAN controller's transmit error counter past the bus-off threshold, after which the WCM stops transmitting all messages, including the shutdown command. Peer ECUs do not interpret WCM silence as a security event and continue normal operation, allowing the motorcycle to be operated despite the immobilizer never having been unlocked. Specific protocol details have been withheld pending vendor remediation.

References (1)

Core 1
Core References
Technical Description technical-description
https://cwe.mitre.org/data/definitions/440.html

Scores

CVSS v3 4.6
EPSS 0.0018
EPSS Percentile 7.8%
Attack Vector PHYSICAL
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-440 CWE-693 CWE-754
Status published
Products (1)
Indian Motorcycle (Polaris Inc.)/Scout Bobber + Tech 2025
Published May 29, 2026
Tracked Since May 29, 2026