CVE-2026-16458: Oberon Microsystems AG Ocrypto

Medium severity, CVSS 5.9. EPSS: 0.1% chance of exploitation in the next 30 days.

Padding oracle attack vulnerability in Oberon microsystem AG’s ocrypto library in all versions since 3.0.0 and prior to 4.0.1 allows an attacker to recover plaintexts via timing measurements of RSA PKCS#1 v1.5 decrypt operations.

Affected products

• Oberon Microsystems AG Ocrypto: from 3.0.0, before 4.0.1 (fixed in 4.0.1)

Published 2026-08-13. Last modified 2026-08-26.