{"id":"CVE-2025-4053","aliases":["EUVD-2025-27972","GHSA-cg49-x3j6-7j3g"],"status":"published","title":"Unauthorized creation of master key in Mifare Classic Be-Tech cards","description":"The data stored in Be-Tech Mifare Classic card is stored in cleartext. An attacker having access to a Be-Tech hotel guest Mifare Classic card can create a master key card that unlocks all the locks in the building. \n\nThis issue affects all Be-Tech Mifare Classic card systems. To fix the vulnerability, it is necessary to replace the software, encoder, cards, and PCBs in the locks.","severity":{"version":"4.0","score":6.8,"vector":"CVSS:4.0/AV:P/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00155,"percentile":0.04739,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-312"],"published":"2025-05-26T10:03:35Z","modified":"2026-06-17T09:32:23Z","products":[{"vendor":"be-tech","product":"mifare classic cards"}],"references":[{"url":"https://cert.pl/en/posts/2025/05/CVE-2025-4053/","tags":["third-party-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-4053"},{"url":"https://cert.pl/en/posts/2025/05/CVE-2025-4053"},{"url":"https://github.com/advisories/GHSA-cg49-x3j6-7j3g"}],"sources":{"cve":[{"id":"CVE-2025-4053","title":"Unauthorized creation of master key in Mifare Classic Be-Tech cards","description":"The data stored in Be-Tech Mifare Classic card is stored in cleartext. An attacker having access to a Be-Tech hotel guest Mifare Classic card can create a master key card that unlocks all the locks in the building. \n\nThis issue affects all Be-Tech Mifare Classic card systems. To fix the vulnerability, it is necessary to replace the software, encoder, cards, and PCBs in the locks.","status":"published","published":"2025-05-26T10:03:35.047Z","modified":"2025-05-27T14:23:50.767Z","cvss":[{"version":"4.0","score":6.8,"vector":"CVSS:4.0/AV:P/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-312"],"updated_at":"2026-11-02T14:32:48.853452Z"}],"euvd":[{"id":"EUVD-2025-27972","description":"The data stored in Be-Tech Mifare Classic card is stored in cleartext. An attacker having access to a Be-Tech hotel guest Mifare Classic card can create a master key card that unlocks all the locks in the building. \n\nThis issue affects all Be-Tech Mifare Classic card systems. To fix the vulnerability, it is necessary to replace the software, encoder, cards, and PCBs in the locks.","status":"published","published":"2025-05-26T10:03:35Z","modified":"2025-05-27T14:23:50Z","cvss":[{"version":"4.0","score":6.8,"vector":"CVSS:4.0/AV:P/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T20:32:38.348652Z"}],"ghsa":[{"id":"GHSA-cg49-x3j6-7j3g","title":"The data stored in Be-Tech Mifare Classic card is stored in cleartext. An attacker having access...","description":"The data stored in Be-Tech Mifare Classic card is stored in cleartext. An attacker having access to a Be-Tech hotel guest Mifare Classic card can create a master key card that unlocks all the locks in the building. \n\nThis issue affects all Be-Tech Mifare Classic card systems. To fix the vulnerability, it is necessary to replace the software, encoder, cards, and PCBs in the locks.","status":"published","published":"2025-05-26T12:30:30Z","modified":"2025-05-26T12:30:36Z","cvss":[{"version":"4.0","score":6.8,"vector":"CVSS:4.0/AV:P/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/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","level":"medium"}],"cwes":["CWE-312"],"updated_at":"2026-11-02T15:02:26.855176Z"}],"nvd":[{"id":"CVE-2025-4053","description":"The data stored in Be-Tech Mifare Classic card is stored in cleartext. An attacker having access to a Be-Tech hotel guest Mifare Classic card can create a master key card that unlocks all the locks in the building. \n\nThis issue affects all Be-Tech Mifare Classic card systems. To fix the vulnerability, it is necessary to replace the software, encoder, cards, and PCBs in the locks.","status":"published","published":"2025-05-26T10:15:21.19Z","modified":"2026-06-17T09:32:23.843Z","cvss":[{"version":"4.0","score":6.8,"vector":"CVSS:4.0/AV:P/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/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","level":"medium","assessor":"secondary"}],"cwes":["CWE-312"],"updated_at":"2026-11-02T14:11:09.562272Z"}]}}