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.
Advisories

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Fixes

Solution

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Workaround

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History

Fri, 14 Aug 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 13 Aug 2026 11:00:00 +0000

Type Values Removed Values Added
First Time appeared Oberon Microsystems Ag
Oberon Microsystems Ag ocrypto
Vendors & Products Oberon Microsystems Ag
Oberon Microsystems Ag ocrypto

Thu, 13 Aug 2026 09:00:00 +0000

Type Values Removed Values Added
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.
Title Timing side-channel in RSA PKCS#1 v1.5 decryption in ocrypto
Weaknesses CWE-208
CWE-327
References
Metrics cvssV4_0

{'score': 5.9, 'vector': 'CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: NCSC.ch

Published:

Updated: 2026-08-13T14:26:09.348Z

Reserved: 2026-07-21T11:21:05.979Z

Link: CVE-2026-16458

cve-icon Vulnrichment

Updated: 2026-08-13T14:25:49.230Z

cve-icon NVD

Status : Received

Published: 2026-08-13T09:17:12.283

Modified: 2026-08-13T15:19:33.953

Link: CVE-2026-16458

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-13T10:38:59Z

Weaknesses