CVE-2023-5992 MEDIUM

CVE-2023-5992: Opensc: side-channel leaks while stripping encryption pkcs#1 padding

Vendor Red Hat
Product Red Hat Enterprise Linux 7
Weakness CWE-203
Published January 31, 2024
Last update November 6, 2025

CVSS base score

5.6/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

What the vulnerability does

01Description

A vulnerability was found in OpenSC where PKCS#1 encryption padding removal is not implemented as side-channel resistant. This issue may result in the potential leak of private data.

Key dates

02Disclosure timeline

January 31, 2024 CVE published
November 6, 2025 Record updated