{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-44673","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-05-07T16:20:08.659Z","datePublished":"2026-05-14T20:35:13.963Z","dateUpdated":"2026-05-15T14:19:01.227Z"},"containers":{"cna":{"title":"libyang: lyb_read_string() integer overflow → heap buffer overflow","problemTypes":[{"descriptions":[{"cweId":"CWE-190","lang":"en","description":"CWE-190: Integer Overflow or Wraparound","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"references":[{"name":"https://github.com/CESNET/libyang/security/advisories/GHSA-vw2p-pq79-92xh","tags":["x_refsource_CONFIRM"],"url":"https://github.com/CESNET/libyang/security/advisories/GHSA-vw2p-pq79-92xh"}],"affected":[{"vendor":"CESNET","product":"libyang","versions":[{"version":"< SO 5.2.15","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-05-14T20:35:13.963Z"},"descriptions":[{"lang":"en","value":"libyang is a YANG data modeling language library. Prior to SO 5.2.15, lyb_read_string() in src/parser_lyb.c contains an integer overflow that results in a heap buffer overflow when parsing a maliciously crafted LYB binary blob. An attacker who can supply LYB data to any libyang consumer (NETCONF server, sysrepo, etc.) can trigger a crash or potential heap corruption. This vulnerability is fixed in SO 5.2.15."}],"source":{"advisory":"GHSA-vw2p-pq79-92xh","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/CESNET/libyang/security/advisories/GHSA-vw2p-pq79-92xh","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-15T14:18:31.145491Z","id":"CVE-2026-44673","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-05-15T14:19:01.227Z"}}]}}