EUVD-2026-49765

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-2025-8699

CVE-2025-8699 affects KioSoft’s Stored Value Unattended Payment Solutions. The flaw centers on insecure MiFare Classic NFC cards storing account balances that can be read and written, enabling an attacker to identify value fields and a checksum (calculated by XOR-ing cash with an unknown field) a...

USDT has a fake top-up vulnerability

USDT is a token based on P2P transactions. The vulnerability stems from a flaw in the logic used by exchanges to confirm the success of a USDT top-up transaction by not checking the value of the valid field in the transaction details on the blockchain to see if it is true, resulting in a "fake...