CVE-2018-16423: Opensc Project Opensc

Medium severity, CVSS 6.6. EPSS: 0.7% chance of exploitation in the next 30 days.

A double free when handling responses from a smartcard in sc_file_set_sec_attr in libopensc/sc.c in OpenSC before 0.19.0-rc1 could be used by attackers able to supply crafted smartcards to cause a denial of service (application crash) or possibly have unspecified other impact.

Affected products

• Opensc Project Opensc: up to and including 0.18.0

Published 2018-09-04. Last modified 2026-06-17.