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Vulnerability record · CVE-2023-5992 · published 31 January 2024

CVE-2023-5992: Opensc project opensc observable discrepancy vulnerability

Opensc Project · Opensc

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.

5.9 CVSS 3.1 Medium EPSS 1.2% · top 33.9% CWE-203 · Observable discrepancy
5.9CVSS 3.1 base score
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
11Affected product versions listed by NVD
15References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

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.

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

Affected products

11 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://access.redhat.com/errata/RHSA-2024:0966 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0967 Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-5992 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2248685 Issue Tracking
https://github.com/OpenSC/OpenSC/wiki/CVE-2023-5992 Vendor Advisory
https://www.usenix.org/system/files/usenixsecurity24-shagam.pdf ExploitTechnical Description
https://access.redhat.com/errata/RHSA-2024:0966 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0967 Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-5992 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2248685 Issue Tracking
https://github.com/OpenSC/OpenSC/wiki/CVE-2023-5992 Vendor Advisory
https://lists.debian.org/debian-lts-announce/2024/12/msg00026.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OWIZ5ZLO5ECYPLSTESCF7I7PQ
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RJI2FWLY24EOPALQ43YPQEZME
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UECKC7X4IM4YZQ5KRQMNBNKNO

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Source: NIST National Vulnerability Database (record CVE-2023-5992), CISA KEV, FIRST EPSS (scores of 2026-10-07). This page is refreshed as NVD updates the record.