{"id":"AZL-78495","summary":"CVE-2026-28364 affecting package ocaml 5.1.1-1","details":"In OCaml before 4.14.3 and 5.x before 5.4.1, a buffer over-read in Marshal deserialization (runtime/intern.c) enables remote code execution through a multi-phase attack chain. The vulnerability stems from missing bounds validation in the readblock() function, which performs unbounded memcpy() operations using attacker-controlled lengths from crafted Marshal data.","modified":"2026-04-21T04:34:27.947497Z","published":"2026-02-27T04:16:03Z","upstream":["CVE-2026-28364"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-28364"}],"affected":[{"package":{"name":"ocaml","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/ocaml"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"5.1.1-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-78495.json"}}],"schema_version":"1.7.5"}