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.
"}],"value":"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."}],"impacts":[{"descriptions":[{"lang":"en","value":"Cryptanalysis"}]},{"descriptions":[{"lang":"en","value":"Authentication Abuse"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"PHYSICAL","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]},{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"PHYSICAL","baseScore":4.1,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","valueDensity":"NOT_DEFINED","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-1390","description":"CWE-1390 Weak Authentication","lang":"en","type":"CWE"},{"cweId":"CWE-327","description":"CWE-327 Use of a Broken or Risky Cryptographic Algorithm","lang":"en","type":"CWE"},{"cweId":"CWE-294","description":"CWE-294 Authentication Bypass by Capture-Replay","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-05-29T13:45:48.973Z","orgId":"c15abc07-96a9-4d11-a503-5d621bfe42ba","shortName":"ASRG"},"references":[{"tags":["third-party-advisory"],"url":"https://www.asrg.io/security-advisories/cve-2026-49322-indian-scout-infotainment-wcm-weak-authentication"}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"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.
"}],"value":"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."}],"source":{"discovery":"EXTERNAL"},"timeline":[{"lang":"en","time":"2025-03-26T00:00:00.000Z","value":"Reported to Indian Motorcycle by Rustic Security LLC (responsible disclosure)"}],"title":"Indian Scout Bobber 2025 Infotainment-to-WCM weak authentication allows recovery of user PIN from observed exchange","x_generator":{"engine":"Vulnogram 1.0.2"}}},"cveMetadata":{"assignerOrgId":"c15abc07-96a9-4d11-a503-5d621bfe42ba","assignerShortName":"ASRG","cveId":"CVE-2026-49322","datePublished":"2026-05-29T07:29:55.546Z","dateReserved":"2026-05-29T07:26:43.199Z","dateUpdated":"2026-05-29T13:45:48.973Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-29 08:16:19","lastModifiedDate":"2026-05-29 15:16:24","problem_types":["CWE-294","CWE-327","CWE-1390","CWE-1390 CWE-1390 Weak Authentication","CWE-327 CWE-327 Use of a Broken or Risky Cryptographic Algorithm","CWE-294 CWE-294 Authentication Bypass by Capture-Replay"],"metrics":{"cvssMetricV40":[{"source":"cve@asrg.io","type":"Secondary","cvssData":{"version":"4.0","vectorString":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","baseScore":4.1,"baseSeverity":"MEDIUM","attackVector":"PHYSICAL","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"cvssMetricV31":[{"source":"cve@asrg.io","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","baseScore":4.3,"baseSeverity":"MEDIUM","attackVector":"PHYSICAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":0.7,"impactScore":3.6}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"49322","Ordinal":"1","Title":"Indian Scout Bobber 2025 Infotainment-to-WCM weak authentication","CVE":"CVE-2026-49322","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"49322","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"Indian Scout Bobber 2025 Infotainment-to-WCM weak authentication"}]}}}