Medium 5.7Published Apr 23, 2026

CVE-2025-13763Libopensc: opensc: multiple uses of uninitialized variable

Updated under an hour ago (Oct 27, 2026, 6:40 PM ET)

Does this affect you?

It affects OpenSC and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for OpenSC

Exploited in the last 30 days

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

CVSS: 5.7 MEDIUM (v3.1, CNA)CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
Weakness (CWE): CWE-457
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: redhat
NVD analysis: Awaiting Analysis
Record last updated: Jun 30, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

OpenSC OpenSC opensc:opensc (from the name)	before 0.27.0	CNA record
Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux	10	CNA record

References

References

https://access.redhat.com/security/cve/CVE-2025-13763	vdb-entry, x-refsource-redhat
https://bugzilla.redhat.com/show_bug.cgi?id=2417581	issue-tracking, x-refsource-redhat
https://github.com/OpenSC/OpenSC/security/advisories/GHSA-2v44-fq35-98vv
https://github.com/OpenSC/OpenSC/wiki/CVE-2025-13763

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.