An attacker with physical access to the Kantech Gen1 ioSmart card reader with firmware version prior to 1.07.02 in certain circumstances can recover the reader's communication memory between the card and reader.

An attacker with physical access to the Kantech Gen1 ioSmart card reader with firmware version prior to 1.7.2 in certain circumstances can recover the reader's communication memory between the card and reader.

Kantech Gen1 ioSmart card readers with firmware versions prior to 1.7.2 do not properly release memory after its effective lifetime. An attacker with physical access to the Kantech Gen1 ioSmart card reader in certain circumstances can recover the reader's communication memory between the card and reader. CWE-200: Exposure of Sensitive Information to an Unauthorized Actor also applies to this vulnerability.