{"cve":"CVE-2021-42781","nvd":{"published":"2022-04-18T17:15:16.303","modified":"2026-06-17T04:10:08.200","status":"Modified","description":"Heap buffer overflow issues were found in Opensc before version 0.22.0 in pkcs15-oberthur.c that could potentially crash programs using the library.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","score":5.3},"cwes":["CWE-787","CWE-119"],"references":["https://bugzilla.redhat.com/show_bug.cgi?id=2016439","https://github.com/OpenSC/OpenSC/commit/05648b06","https://github.com/OpenSC/OpenSC/commit/17d8980c","https://github.com/OpenSC/OpenSC/commit/40c50a3a","https://github.com/OpenSC/OpenSC/commit/5d4daf6c"],"products":["fedoraproject:fedora","opensc_project:opensc","redhat:enterprise_linux"],"source":"nvd","synced_at":"2026-10-19T21:30:03.577988018+00:00"},"epss":{"cve":"CVE-2021-42781","score":0.02873,"percentile":0.86822,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}