{"id":"AZL-81504","summary":"CVE-2026-5121 affecting package libarchive for versions less than 3.7.7-6","details":"A flaw was found in libarchive. On 32-bit systems, an integer overflow vulnerability exists in the zisofs block pointer allocation logic. A remote attacker can exploit this by providing a specially crafted ISO9660 image, which can lead to a heap buffer overflow. This could potentially allow for arbitrary code execution on the affected system.","modified":"2026-08-30T05:26:50Z","published":"2026-03-30T08:16:18Z","upstream":["CVE-2026-5121"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-5121"}],"affected":[{"package":{"name":"libarchive","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/libarchive"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.7.7-6"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-81504.json"}}],"schema_version":"1.9.0"}