{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-06-16T22:52:48.948","vulnerabilities":[{"cve":{"id":"CVE-2019-20393","sourceIdentifier":"cve@mitre.org","published":"2020-01-22T22:15:10.237","lastModified":"2024-11-21T04:38:22.720","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"A double-free is present in libyang before v1.0-r1 in the function yyparse() when an empty description is used. Applications that use libyang to parse untrusted input yang files may be vulnerable to this flaw, which would cause a crash or potentially code execution."},{"lang":"es","value":"Una doble liberación está presente en libyang versiones anteriores a v1.0-r1, en la función yyparse() cuando es usada una descripción vacía. Las aplicaciones que usan libyang para analizar archivos de entrada yang no confiables pueden ser vulnerables a este fallo, lo que podría causar un bloqueo o potencialmente una ejecución de código."}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","baseScore":8.8,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":5.9}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:P/I:P/A:P","baseScore":6.8,"accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":8.6,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":true}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-415"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:cesnet:libyang:0.11:r1:*:*:*:*:*:*","matchCriteriaId":"65E91322-5F67-43C2-8112-5ECAEC2A3C12"},{"vulnerable":true,"criteria":"cpe:2.3:a:cesnet:libyang:0.11:r2:*:*:*:*:*:*","matchCriteriaId":"80A88DE4-93F8-40C3-AA52-A5F353F028AA"},{"vulnerable":true,"criteria":"cpe:2.3:a:cesnet:libyang:0.12:r1:*:*:*:*:*:*","matchCriteriaId":"05C120CA-50EF-4B6D-92C9-ED736219DB07"},{"vulnerable":true,"criteria":"cpe:2.3:a:cesnet:libyang:0.12:r2:*:*:*:*:*:*","matchCriteriaId":"99D1FA55-3F56-4E09-B41E-B05C199B96B8"},{"vulnerable":true,"criteria":"cpe:2.3:a:cesnet:libyang:0.13:r1:*:*:*:*:*:*","matchCriteriaId":"35D48EC4-58D2-49C6-8049-920787733587"},{"vulnerable":true,"criteria":"cpe:2.3:a:cesnet:libyang:0.13:r2:*:*:*:*:*:*","matchCriteriaId":"B57F3953-49D6-413C-A4AE-03125935FC77"},{"vulnerable":true,"criteria":"cpe:2.3:a:cesnet:libyang:0.14:r1:*:*:*:*:*:*","matchCriteriaId":"DD62411F-A524-4E80-B540-780EA39CB6A4"},{"vulnerable":true,"criteria":"cpe:2.3:a:cesnet:libyang:0.15:r1:*:*:*:*:*:*","matchCriteriaId":"FEF091B1-978A-4881-B1FC-6848CD1A7BBF"},{"vulnerable":true,"criteria":"cpe:2.3:a:cesnet:libyang:0.16:r1:*:*:*:*:*:*","matchCriteriaId":"0C50D690-9A4D-4B78-BF4E-A4D9B4074216"},{"vulnerable":true,"criteria":"cpe:2.3:a:cesnet:libyang:0.16:r2:*:*:*:*:*:*","matchCriteriaId":"124A5D30-7451-4516-9AA2-963AE62DD679"},{"vulnerable":true,"criteria":"cpe:2.3:a:cesnet:libyang:0.16:r3:*:*:*:*:*:*","matchCriteriaId":"C260D13B-82E9-4596-9116-61073B42D661"}]}]}],"references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1793930","source":"cve@mitre.org","tags":["Issue Tracking","Patch","Third Party Advisory"]},{"url":"https://github.com/CESNET/libyang/commit/d9feacc4a590d35dbc1af21caf9080008b4450ed","source":"cve@mitre.org","tags":["Patch","Third Party Advisory"]},{"url":"https://github.com/CESNET/libyang/compare/v0.16-r3...v1.0-r1","source":"cve@mitre.org","tags":["Third Party Advisory"]},{"url":"https://github.com/CESNET/libyang/issues/742","source":"cve@mitre.org","tags":["Exploit","Third Party Advisory"]},{"url":"https://lists.debian.org/debian-lts-announce/2023/09/msg00019.html","source":"cve@mitre.org"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1793930","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Issue Tracking","Patch","Third Party Advisory"]},{"url":"https://github.com/CESNET/libyang/commit/d9feacc4a590d35dbc1af21caf9080008b4450ed","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Third Party Advisory"]},{"url":"https://github.com/CESNET/libyang/compare/v0.16-r3...v1.0-r1","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]},{"url":"https://github.com/CESNET/libyang/issues/742","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Third Party Advisory"]},{"url":"https://lists.debian.org/debian-lts-announce/2023/09/msg00019.html","source":"af854a3a-2127-422b-91ae-364da2661108"}]}}]}