{"id":"AZL-86766","summary":"CVE-2026-5172 affecting package dnsmasq for versions less than 2.92-1","details":"A buffer overflow in dnsmasq’s extract_addresses() function allows an attacker to trigger a heap out-of-bounds read and crash by exploiting a malformed DNS response, enabling extract_name() to advance the pointer past the record’s end.","modified":"2026-09-12T05:27:53Z","published":"2026-05-11T18:16:41Z","upstream":["CVE-2026-5172"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-5172"}],"affected":[{"package":{"name":"dnsmasq","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/dnsmasq"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.92-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-86766.json"}}],"schema_version":"1.9.0"}