{"id":"AZL-91275","summary":"CVE-2026-48715 affecting package radvd for versions less than 2.21-1","details":"radvd is a router advertisement daemon for IPv6. Prior to version 2.21, the `radvdump` utility shipped with radvd contains a stack buffer overflow in the Route Information option parser. When processing a crafted ICMPv6 Router Advertisement, `print_ff()` copies up to 2032 bytes from attacker-controlled packet data into a 16-byte `struct in6_addr` on the stack, overflowing by up to 2016 bytes. Note that the main `radvd` daemon is not affected by the vulnerability. Version 2.21 patches the issue.","modified":"2026-08-28T17:48:06.100955385Z","published":"2026-06-19T20:16:17Z","upstream":["CVE-2026-48715"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-48715"}],"affected":[{"package":{"name":"radvd","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/radvd"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.21-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-91275.json"}}],"schema_version":"1.9.0"}