CVE-2026-49316

Anti-theft bypass via WCM CAN bus-off

Published May 29, 2026 · Updated May 29, 2026

Expected behavior violation in Indian Motorcycle Scout Bobber Limited +Tech 2025 WCM allows physically proximate attackers to bypass shutdown. Peer ECUs treat WCM silence after injected CAN errors as normal operation rather than a security event, so bus-off suppresses the anti-theft shutdown command. Physical access to the in-vehicle CAN network is required, and the bounded consequence is continued motorcycle operation while the immobilizer remains locked.

CVSS severity4.1
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Expected behavior violation in Indian Motorcycle Scout Bobber Limited +Tech 2025 WCM allows physically proximate attackers to bypass shutdown. Peer ECUs treat WCM silence after injected CAN errors as normal operation rather than a security event, so bus-off suppresses the anti-theft shutdown command. Physical access to the in-vehicle CAN network is required, and the bounded consequence is continued motorcycle operation while the immobilizer remains locked.

The record

CVE
CVE-2026-49316
Published
May 29, 2026
Updated
May 29, 2026
Vendor
Indian Motorcycle
Product
Scout Bobber Limited +Tech
Classifications
CWE-693, CWE-440, CWE-754, T0804
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 29, 2026CVE publishedPublication date reported by the CVE source.
  2. May 29, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2025

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

Indian Motorcycle · Scout Bobber Limited +Techversion=2025

Published CVSS scores

4.6Automotive Security Research Group (ASRG)CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
4.1Automotive Security Research Group (ASRG)CVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-693Protection Mechanism Failure
CWE-440Expected Behavior Violation
CWE-754Improper Check for Unusual or Exceptional Conditions
T0804Block Reporting Message

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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