{"cve":"CVE-2019-20392","nvd":{"published":"2020-01-22T22:15:10.143","modified":"2026-06-17T02:30:21.120","status":"Modified","description":"An invalid memory access flaw is present in libyang before v1.0-r1 in the function resolve_feature_value() when an if-feature statement is used inside a list key node, and the feature used is not defined. Applications that use libyang to parse untrusted input yang files may crash.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","score":6.5},"cwes":["CWE-119"],"references":["https://bugzilla.redhat.com/show_bug.cgi?id=1793922","https://github.com/CESNET/libyang/commit/32fb4993bc8bb49e93e84016af3c10ea53964be5","https://github.com/CESNET/libyang/compare/v0.16-r3...v1.0-r1","https://github.com/CESNET/libyang/issues/723","https://lists.debian.org/debian-lts-announce/2023/09/msg00019.html"],"products":["cesnet:libyang"],"source":"nvd","synced_at":"2026-10-19T21:01:01.339895972+00:00"},"epss":{"cve":"CVE-2019-20392","score":0.01876,"percentile":0.79408,"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."]}