CVE-2026-4648

Use of an insecure cryptographic algorithm in the cashless payment system using NFC wristbands from CasfID Servicios Tecnológicos S.L.U. version used at Resurrection Fest 2025, which employs cards based on MIFARE Classic technology FM11RF08S. The cryptographic weakness of the authentication...

CVE-2026-4648

CVE-2026-4648 concerns CasfID Servicios Tecnológicos S.L.U. NFC wristbands used at Resurrection Fest 2025, which rely on MIFARE Classic (FM11RF08S). The underlying issue is an insecure cryptographic algorithm in the authentication process, enabling an attacker to retrieve access keys via Backdoor...