Multiple uses of uninitialized variables were found in libopensc that may lead to information disclosure or application crash. An attack requires a crafted USB device or smart card that would present the system with specially crafted responses to the APDUs

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Fixes

Solution

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Workaround

To mitigate this issue, avoid connecting untrusted USB devices or smart cards to systems running affected versions of Red Hat Enterprise Linux. This operational control reduces the risk of an attacker presenting a specially crafted device to exploit the uninitialized variable flaws in `libopensc`.

History

Thu, 23 Apr 2026 12:45:00 +0000

Type Values Removed Values Added
Description Multiple uses of uninitialized variables were found in libopensc that may lead to information disclosure or application crash. An attack requires a crafted USB device or smart card that would present the system with specially crafted responses to the APDUs
Title Libopensc: opensc: multiple uses of uninitialized variable
First Time appeared Redhat
Redhat enterprise Linux
CPEs cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
References
Metrics cvssV3_1

{'score': 5.7, 'vector': 'CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-04-23T12:33:39.857Z

Reserved: 2025-11-27T14:35:05.731Z

Link: CVE-2025-13763

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-04-23T13:16:09.697

Modified: 2026-04-23T13:16:09.697

Link: CVE-2025-13763

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses

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