CVE-2025-4053 Unauthorized creation of master key in Mifare Classic Be-Tech cards
Attackers with a guest card can create a master key to unlock all building locks due to cleartext storage, requiring full system replacement.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-4053?
CVE-2025-4053 is a medium-severity vulnerability in Be-Tech Mifare Classic cards, published on 26 May 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
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.
Weakness: CWE-312
Which versions are affected by CVE-2025-4053?
How do I fix CVE-2025-4053?
No fix has been published for CVE-2025-4053 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-4053 being exploited?
There is no known exploitation of CVE-2025-4053 in the wild and no public exploit code.
Sources
Also known as GHSA-cg49-x3j6-7j3g.