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CVE-2026-49323— Indian Scout Bobber 2025 WCM-to-ECM weak authentication

Quick assessment

Affected
Indian Motorcycle Scout Bobber + Tech
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Indian Motorcycle Scout Bobber + Tech是日本Indian Motorcycle公司的一款中量级巡航摩托车。 Indian Motorcycle Scout Bobber + Tech 2025存在安全漏洞，该漏洞源于Wireless Control Module和Engine Control Module之间的弱身份验证，可能导致相邻网络攻击者通过被动观察一次种子/密钥交换恢复每车ECM防盗器密钥。

CVSS 4.3 · Medium EPSS 0.14% · P3

Affected Version Matrix 1

VendorProduct Version RangeStatus
Indian Motorcycle Scout Bobber + Tech 2025 affected
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I. Basic Information for CVE-2026-49323

Vulnerability Information
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Vulnerability Title
Indian Scout Bobber 2025 WCM-to-ECM weak authentication
Source: CVE Program / CVE List V5
Vulnerability Description
Weak authentication between the Wireless Control Module (WCM) and the Engine Control Module (ECM) 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 per-vehicle ECM immobilizer secret by passively observing a single seed/key exchange. The WCM derives its response using a reversible, non-cryptographic operation rather than a cryptographic challenge-response, so the persistent immobilizer secret can be reconstructed from one captured exchange. With this secret the attacker can authenticate to the ECM independently of the WCM and start the engine, defeating the immobilizer. Specific protocol details have been withheld pending vendor remediation.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1390
Source: CVE Program / CVE List V5
Vulnerability Title
Indian Motorcycle Scout Bobber + Tech 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Indian Motorcycle Scout Bobber + Tech是日本Indian Motorcycle公司的一款中量级巡航摩托车。 Indian Motorcycle Scout Bobber + Tech 2025存在安全漏洞，该漏洞源于Wireless Control Module和Engine Control Module之间的弱身份验证，可能导致相邻网络攻击者通过被动观察一次种子/密钥交换恢复每车ECM防盗器密钥。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Indian Motorcycle Scout Bobber + Tech 2025 -

II. Public POCs for CVE-2026-49323

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III. Intelligence Information for CVE-2026-49323

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Vendor Advisories for CVE-2026-49323 (1)

Same Patch Batch · Indian Motorcycle · 2026-05-29 · 7 CVEs total

CVE-2026-49324 4.6 MEDIUM Indian Scout Bobber 2025 WCM brute-force
CVE-2026-49316 4.6 MEDIUM Indian Scout Bobber 2025 WCM CAN bus-off attack silently bypasses anti-theft shutdown
CVE-2026-49325 4.6 MEDIUM Indian Scout Bobber 2025 WCM voltage-based shutdown
CVE-2026-49322 4.3 MEDIUM Indian Scout Bobber 2025 Infotainment-to-WCM weak authentication allows recovery of user P
CVE-2026-49317 2.4 LOW Indian Scout Bobber 2025 Infotainment Digital Round skips PIN entry when WCM is silent at
CVE-2026-49318 2.4 LOW Indian Scout Bobber 2025 Infotainment Digital Round skips PIN entry when WCM is silent at

IV. Related Vulnerabilities

Same product: Scout Bobber + Tech
Same vendor: Indian Motorcycle
Same weakness: CWE-1390

V. Comments for CVE-2026-49323

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