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OpenAdvisories
Medium · 5.9 CVE-2026-16458 EUVD-2026-57758GHSA-pfwq-9x97-jv4q

Timing side-channel in RSA PKCS#1 v1.5 decryption in ocrypto

Published Aug 13, 2026 · Updated Aug 13, 2026 · Assigned by NCSC.ch

Description

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

VendorProductAffectedFixed
Oberon microsystems ocrypto 3.0.0 – < 4.0.1 4.0.1

References