CVE-2025-13763CWE-457

CVE-2025-13763

Medium · published April 23, 2026

CVSS v3.1

5.7

EPSS

Percentile

17.5

In the wild

Unconfirmed

What it is

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

The record

Technical detail

CVSS v3.1: 5.7 · MEDIUM
Vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
CVSS v4.0: Not supplied
EPSS: 0.00265 · 17.5th percentile
Weakness: CWE-457 · Use of Uninitialized Variable
Published: 2026-04-23T17:16Z

References (5)

https://access.redhat.com/security/cve/CVE-2025-13763 · [email protected]https://bugzilla.redhat.com/show_bug.cgi?id=2417581 · [email protected]https://github.com/OpenSC/OpenSC/security/advisories/GHSA-2v44-fq35-98vv · [email protected]https://github.com/OpenSC/OpenSC/wiki/CVE-2025-13763 · [email protected]https://github.com/OpenSC/OpenSC/security/advisories/GHSA-2v44-fq35-98vv · 134c704f-9b21-4f2e-91b3-4a467353bcc0

EPSS history

Timeline

23 APR 12:27Z
Libopensc: opensc: multiple uses of uninitialized variable
cvelistv5