{"id":"CVE-2021-45462","details":"In Open5GS 2.4.0, a crafted packet from UE can crash SGW-U/UPF.","modified":"2026-08-07T17:03:10.859383Z","published":"2021-12-23T04:15:09.573Z","references":[{"type":"WEB","url":"https://www.trendmicro.com/en_us/research/23/i/attacks-on-5g-infrastructure-from-users-devices.html"},{"type":"FIX","url":"https://github.com/open5gs/open5gs/commit/a0f2535cb5a29bba6dbbccdb90c74ccd770cc700"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/open5gs/open5gs","events":[{"introduced":"27b87c1110d8d5ec0de5e357f561082a0a9482c1"},{"last_affected":"27b87c1110d8d5ec0de5e357f561082a0a9482c1"},{"fixed":"a0f2535cb5a29bba6dbbccdb90c74ccd770cc700"}],"database_specific":{"cpe":"cpe:2.3:a:open5gs:open5gs:2.4.0:*:*:*:*:*:*:*","extracted_events":[{"introduced":"2.4.0"},{"last_affected":"2.4.0"}],"source":["CPE_STRING","REFERENCES"]}}],"versions":["2.4.0","v2.4.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-45462.json","vanir_signatures_modified":"2026-08-07T17:03:10Z","vanir_signatures":[{"digest":{"function_hash":"66498646289301510419849744843098299667","length":5852},"id":"CVE-2021-45462-108d25fa","signature_type":"Function","signature_version":"v1","source":"https://github.com/open5gs/open5gs/commit/a0f2535cb5a29bba6dbbccdb90c74ccd770cc700","target":{"file":"src/upf/gtp-path.c","function":"_gtpv1_u_recv_cb"},"deprecated":false},{"digest":{"function_hash":"221589819375939541502721851894602973056","length":2842},"id":"CVE-2021-45462-7ee42e6e","signature_type":"Function","signature_version":"v1","source":"https://github.com/open5gs/open5gs/commit/a0f2535cb5a29bba6dbbccdb90c74ccd770cc700","target":{"file":"src/smf/gtp-path.c","function":"_gtpv1_u_recv_cb"},"deprecated":false},{"deprecated":false,"digest":{"function_hash":"108230382947362361426818551219694048171","length":4038},"id":"CVE-2021-45462-96f5d491","signature_type":"Function","signature_version":"v1","source":"https://github.com/open5gs/open5gs/commit/a0f2535cb5a29bba6dbbccdb90c74ccd770cc700","target":{"file":"src/sgwu/gtp-path.c","function":"_gtpv1_u_recv_cb"}}]}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}