{"id":"CVE-2026-2541","aliases":["EUVD-2026-5830","GHSA-h385-cwmv-vj9f"],"status":"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.","severity":{"version":"4.0","score":6.4,"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","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00251,"percentile":0.16517,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-331"],"published":"2026-02-15T11:07:40Z","modified":"2026-06-17T10:31:16Z","products":[{"vendor":"micca auto electronics co., ltd.","product":"car alarm system ke700"}],"references":[{"url":"https://asrg.io/security-advisories/cve-2026-2541/","tags":["third-party-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-2541"},{"url":"https://asrg.io/security-advisories/cve-2026-2541"},{"url":"https://github.com/advisories/GHSA-h385-cwmv-vj9f"}],"sources":{"cve":[{"id":"CVE-2026-2541","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.","status":"published","published":"2026-02-15T11:07:40.539Z","modified":"2026-02-17T17:06:46.968Z","cvss":[{"version":"4.0","score":6.4,"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","level":"medium","assessor":"cna"}],"cwes":["CWE-331"],"updated_at":"2026-11-02T13:48:35.749498Z"}],"euvd":[{"id":"EUVD-2026-5830","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.","status":"published","published":"2026-02-15T11:07:40Z","modified":"2026-02-17T17:06:46Z","cvss":[{"version":"4.0","score":6.4,"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","level":"medium"}],"updated_at":"2026-11-02T19:48:37.939014Z"}],"ghsa":[{"id":"GHSA-h385-cwmv-vj9f","title":"The Micca KE700 system relies on a 6-bit portion of an identifier for authentication within...","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.","status":"published","published":"2026-02-15T12:30:25Z","modified":"2026-02-15T12:30:35Z","cvss":[{"version":"4.0","score":6.4,"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/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:D/RE:H/U:X","level":"medium"}],"cwes":["CWE-331"],"updated_at":"2026-11-02T15:06:13.022126Z"}],"nvd":[{"id":"CVE-2026-2541","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.","status":"published","published":"2026-02-15T11:15:55.223Z","modified":"2026-06-17T10:31:16.63Z","cvss":[{"version":"4.0","score":6.4,"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/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:D/RE:H/U:X","level":"medium","assessor":"secondary"}],"cwes":["CWE-331"],"updated_at":"2026-11-02T14:12:05.908608Z"}]}}