{"schema_version":"1.7.2","id":"OESA-2026-2809","modified":"2026-07-06T06:26:13Z","published":"2026-07-06T06:26:13Z","upstream":["CVE-2026-48715"],"summary":"radvd security update","details":"The router advertisement daemon (radvd) is run by Linux or BSD systems acting as IPv6 routers. It sends Router Advertisement messages, specified by RFC 2461, to a local Ethernet LAN periodically and when requested by a node sending a Router Solicitation message. These messages are required for IPv6 stateless autoconfiguration.\r\n\r\nSecurity Fix(es):\n\nradvd 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.(CVE-2026-48715)","affected":[{"package":{"ecosystem":"openEuler:24.03-LTS-SP1","name":"radvd","purl":"pkg:rpm/openEuler/radvd&distro=openEuler-24.03-LTS-SP1"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.19-4.oe2403sp1"}]}],"ecosystem_specific":{"aarch64":["radvd-2.19-4.oe2403sp1.aarch64.rpm","radvd-debuginfo-2.19-4.oe2403sp1.aarch64.rpm","radvd-debugsource-2.19-4.oe2403sp1.aarch64.rpm"],"noarch":["radvd-help-2.19-4.oe2403sp1.noarch.rpm"],"src":["radvd-2.19-4.oe2403sp1.src.rpm"],"x86_64":["radvd-2.19-4.oe2403sp1.x86_64.rpm","radvd-debuginfo-2.19-4.oe2403sp1.x86_64.rpm","radvd-debugsource-2.19-4.oe2403sp1.x86_64.rpm"]}}],"references":[{"type":"ADVISORY","url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-2809"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-48715"}],"database_specific":{"severity":"High"}}