CVE-2019-12813: Crossmatch Digital Persona U.are.u 4500 Firmware

Medium severity, CVSS 5.9. EPSS: 1.1% chance of exploitation in the next 30 days.

An issue was discovered in Digital Persona U.are.U 4500 Fingerprint Reader v24. The key and salt used for obfuscating the fingerprint image exhibit cleartext when the fingerprint scanner device transfers a fingerprint image to the driver. An attacker who sniffs an encrypted fingerprint image can easily decrypt that image using the key and salt.

Affected products

• Crossmatch Digital Persona U.are.u 4500 Firmware: version 24 only

Published 2019-06-13. Last modified 2026-06-17.