CVE-2025-13763

Libopensc: opensc: multiple uses of uninitialized variable

CVE-2025-13763 is fixed in opensc on 1 platform by DEBIAN-CVE-2025-13763 (version 0.27.0~rc1-1), released May 15, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine

CVSS

5.7

Moderate

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0027

18th percentile

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

Where it's fixed

Product	Fixed in	Fix	Released
Linux
opensc · Debian 14	0.27.0~rc1-1	DEBIAN-CVE-2025-13763	May 15, 2026

Details

Published
April 23, 2026
CVSS vector
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-13763

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