Weak authentication in the Wireless Control Module (WCM) of the Indian Motorcycle Scout Bobber + Tech 2025 model year allows an adjacent-network attacker with read access to the in-vehicle network to recover the user-set unlock PIN by passively observing a single PIN authentication exchange. The Infotainment Digital Round display computes its response using a non-cryptographic operation rather than a cryptographic challenge-response, so the PIN is mathematically derivable from one captured exchange, defeating the motorcycle's primary user-authentication control. Specific protocol details have been withheld pending vendor remediation.

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Advisories

No advisories yet.

Fixes

Solution

Replace the non-cryptographic response computation with a digital signature (for example ECDSA P-256) or an HMAC over a fresh per-session random nonce, bound to a stable per-vehicle identifier to prevent cross-bike replay.


Workaround

No workaround given by the vendor.

History

Fri, 29 May 2026 16:00:00 +0000

Type Values Removed Values Added
First Time appeared Indian Motorcycle
Indian Motorcycle scout Bobber + Tech
Vendors & Products Indian Motorcycle
Indian Motorcycle scout Bobber + Tech

Fri, 29 May 2026 15:30:00 +0000

Type Values Removed Values Added
References
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 29 May 2026 14:45:00 +0000


Fri, 29 May 2026 07:45:00 +0000

Type Values Removed Values Added
Description Weak authentication in the Wireless Control Module (WCM) of the Indian Motorcycle Scout Bobber + Tech 2025 model year allows an adjacent-network attacker with read access to the in-vehicle network to recover the user-set unlock PIN by passively observing a single PIN authentication exchange. The Infotainment Digital Round display computes its response using a non-cryptographic operation rather than a cryptographic challenge-response, so the PIN is mathematically derivable from one captured exchange, defeating the motorcycle's primary user-authentication control. Specific protocol details have been withheld pending vendor remediation.
Title Indian Scout Bobber 2025 Infotainment-to-WCM weak authentication allows recovery of user PIN from observed exchange
Weaknesses CWE-1390
CWE-294
CWE-327
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N'}

cvssV4_0

{'score': 4.1, 'vector': 'CVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: ASRG

Published:

Updated: 2026-05-29T15:01:20.202Z

Reserved: 2026-05-29T07:26:43.199Z

Link: CVE-2026-49322

cve-icon Vulnrichment

Updated: 2026-05-29T15:01:16.680Z

cve-icon NVD

Status : Deferred

Published: 2026-05-29T08:16:19.060

Modified: 2026-05-29T15:16:24.487

Link: CVE-2026-49322

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-29T15:47:28Z

Weaknesses