{"cve":"CVE-2019-19333","nvd":{"published":"2019-12-06T16:15:10.827","modified":"2026-06-17T02:26:31.213","status":"Modified","description":"In all versions of libyang before 1.0-r5, a stack-based buffer overflow was discovered in the way libyang parses YANG files with a leaf of type \"bits\". An application that uses libyang to parse untrusted YANG files may be vulnerable to this flaw, which would allow an attacker to cause a denial of service or possibly gain code execution.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-787","CWE-121"],"references":["https://access.redhat.com/errata/RHSA-2019:4360","https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-19333","https://github.com/CESNET/libyang/commit/f6d684ade99dd37b21babaa8a856f64faa1e2e0d","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PETB6TVMFV5KUD4IKVP2JPLBCYHUGSAJ/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RL54JMS7XW7PI6JC4BFSNNLSX5AINQUL/"],"products":["cesnet:libyang","redhat:enterprise_linux"],"source":"nvd","synced_at":"2026-10-19T20:59:27.069234358+00:00"},"epss":{"cve":"CVE-2019-19333","score":0.03644,"percentile":0.89583,"date":"2026-10-31"},"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."]}