CVE-2025-4053CWE-312

Unauthorized creation of master key in Mifare Classic Be-Tech cards

Medium · published May 26, 2025

CVSS v4.0
6.8
EPSS
0%
Percentile
4.3
In the wild
Unconfirmed
What it is

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.

This 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.

The record
Technical detail
CVSS v4.0
6.8 · MEDIUM
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
EPSS
0.00155 · 4.3th percentile
Weakness
CWE-312 · Cleartext Storage of Sensitive Information
Published
2025-05-26T10:03Z
EPSS history
Timeline
  • 26 MAY 10:03Z
    Unauthorized creation of master key in Mifare Classic Be-Tech cards
    cvelistv5