Be Tech · Be-Tech Mifare Classic · CVE-2025-4053
**Name of the Vulnerable Software and Affected Versions**
Be-Tech Mifare Classic card systems (affected versions not specified)
**Description**
The data stored in the 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. This issue affects all Be-Tech Mifare Classic card systems.
**Recommendations**
To fix the vulnerability, it is necessary to replace the software, encoder, cards, and PCBs in the locks.