🛡️ CVE-2026-49323

🟡 CVSS 4.3 — Medium ✅ No Known Exploit CWE-327 NVD
4.3
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

How this vulnerability can be exploited

This issue can be reached with physical access to the device, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity none, availability none.

Weakness class

CVE-2026-49323 is classified as CWE-327: Use of a Broken or Risky Cryptographic Algorithm. An algorithm with known weaknesses is used, so the protection it appears to give does not hold.

Affected software

CVE-2026-49323 is recorded against 1 package.

  • unknown

Timeline and source

Published on 29 May 2026 and last revised on 21 July 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

www.asrg.io

Details

Severity MEDIUM
CVSS Score 4.3
CVSS Vector CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CWE CWE-327
Public Exploit ✅ No
Source NVD
Published 2026-05-29
Updated 2026-08-11
Modified 2026-07-21
Fix URL N/A

Affected Packages

Software From version Fixed in
unknown — —

Similar Threats

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