CVE-2026-16458

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.

Score

CVSS 4.0 5.9 Medium

Status

Deferred - vulnerability@ncsc.ch

Published

2026-08-13

Last modified

2026-10-23

Weaknesses

CWE-208, CWE-327

Affected products

• Ocrypto (Oberon Microsystems Ag)

References

• https://www.oberon.ch/security-advisories/cve-2026-16458/