{"id":"CVE-2026-2541","state":"PUBLISHED","title":"Micca KE700 Brute-force vulnerability due to low entropy","description":"The Micca KE700 system relies on a 6-bit portion of an identifier for authentication within rolling codes, providing only 64 possible combinations. This low entropy allows an attacker to perform a brute-force attack against one component of the rolling code. Successful exploitation simplify an attacker to predict the next valid rolling code, granting unauthorized access to the vehicle.","publishedAt":"2026-02-15T11:07:40.539Z","updatedAt":"2026-02-17T17:06:46.968Z","severity":{"score":6.4,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:H/V:D/RE:H","source":"ASRG"},"assigner":"ASRG","products":["Micca Auto Electronics Co., Ltd. Car Alarm System KE700"],"affected":[{"vendor":"Micca Auto Electronics Co., Ltd.","product":"Car Alarm System KE700","defaultStatus":"affected","versions":[{"version":"KE700","status":"affected"},{"version":"KE700+","status":"unknown"}]}],"references":["https://asrg.io/security-advisories/cve-2026-2541/"],"weaknesses":["CWE-331"],"ingestedAt":"2026-10-29T20:11:31.369Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/2xxx/CVE-2026-2541.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-2541","state":"PUBLISHED","datePublished":"2026-02-15T11:07:40.539Z","dateUpdated":"2026-02-17T17:06:46.968Z","assignerShortName":"ASRG","assignerOrgId":"c15abc07-96a9-4d11-a503-5d621bfe42ba","dateReserved":"2026-02-15T10:49:23.973Z"},"containers":{"cna":{"title":"Micca KE700 Brute-force vulnerability due to low entropy","descriptions":[{"lang":"en","value":"The Micca KE700 system relies on a 6-bit portion of an identifier for authentication within rolling codes, providing only 64 possible combinations. This low entropy allows an attacker to perform a brute-force attack against one component of the rolling code. Successful exploitation simplify an attacker to predict the next valid rolling code, granting unauthorized access to the vehicle."}],"affected":[{"vendor":"Micca Auto Electronics Co., Ltd.","product":"Car Alarm System KE700","defaultStatus":"affected","versions":[{"version":"KE700","status":"affected"},{"version":"KE700+","status":"unknown"}]}],"references":[{"url":"https://asrg.io/security-advisories/cve-2026-2541/","tags":["third-party-advisory"]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"ADJACENT","baseScore":6.4,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"HIGH","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"NONE","valueDensity":"DIFFUSE","vectorString":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:H/V:D/RE:H","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"LOW","vulnerabilityResponseEffort":"HIGH"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-331","description":"CWE-331: Insufficient Entropy","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"ASRG","orgId":"c15abc07-96a9-4d11-a503-5d621bfe42ba","dateUpdated":"2026-02-15T11:07:40.539Z"},"credits":[{"lang":"en","type":"finder","value":"Danilo Erazo"}],"impacts":[{"capecId":"CAPEC-112","descriptions":[{"lang":"en","value":"CAPEC-112: Brute Force"}]}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<ul><li><b>Increase entropy:</b> The random component of the code must be significantly larger. A 16-bit keyspace is insecure by modern standards. A minimum of 64 bits of entropy would make a brute-force attack computationally infeasible.</li>\n</ul>"}],"value":"*  Increase entropy: The random component of the code must be significantly larger. A 16-bit keyspace is insecure by modern standards. A minimum of 64 bits of entropy would make a brute-force attack computationally infeasible."}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 0.5.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-02-17T16:42:16.545829Z","id":"CVE-2026-2541","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-02-17T17:06:46.968Z"}}]}}}