{"id":"CVE-2023-28450","details":"An issue was discovered in Dnsmasq before 2.90. The default maximum EDNS.0 UDP packet size was set to 4096 but should be 1232 because of DNS Flag Day 2020.","modified":"2026-04-16T00:02:26.597041592Z","published":"2023-03-15T21:15:09.333Z","related":["ALSA-2023:6524","ALSA-2023:7046","SUSE-SU-2023:1930-1","SUSE-SU-2023:2123-1","SUSE-SU-2025:0071-1","SUSE-SU-2025:20118-1","openSUSE-SU-2024:12887-1"],"references":[{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2024/11/msg00035.html"},{"type":"WEB","url":"https://capec.mitre.org/data/definitions/495.html"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6UQ6LKDTLSSD64TBIZ3XEKBM2SWC63VV/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OU2ZT4ITSEOOR2CFBAHK4Z67KXJIEWQA/"},{"type":"WEB","url":"https://thekelleys.org.uk/dnsmasq/doc.html"},{"type":"WEB","url":"https://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=blob%3Bf=CHANGELOG"},{"type":"WEB","url":"https://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=eb92fb32b746f2104b0f370b5b295bb8dd4bd5e5"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-28450.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"2.90"}]},{"events":[{"introduced":"0"},{"fixed":"2.90"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}