CVE-2018-16421

PoC —

CVSS 3.0

6.6 medium

EPSS

<1%p51

Published

Sep 4, 2018 (Sep 4, 2018)

Modified

Jun 17, 2026

Description

Several buffer overflows when handling responses from a CAC Card in cac_get_serial_nr_from_CUID in libopensc/card-cac.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.

Vendors: opensc project
Products: opensc
Weakness: CWE-119
Vector: CVSS:3.0/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.7%)

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