In Open5GS 2.4.0, a crafted packet from UE can crash SGW-U/UPF.
[
{
"id": "CVE-2021-45462-108d25fa",
"target": {
"function": "_gtpv1_u_recv_cb",
"file": "src/upf/gtp-path.c"
},
"signature_version": "v1",
"source": "https://github.com/open5gs/open5gs/commit/a0f2535cb5a29bba6dbbccdb90c74ccd770cc700",
"signature_type": "Function",
"digest": {
"function_hash": "66498646289301510419849744843098299667",
"length": 5852.0
},
"deprecated": false
},
{
"id": "CVE-2021-45462-7ee42e6e",
"target": {
"function": "_gtpv1_u_recv_cb",
"file": "src/smf/gtp-path.c"
},
"signature_version": "v1",
"source": "https://github.com/open5gs/open5gs/commit/a0f2535cb5a29bba6dbbccdb90c74ccd770cc700",
"signature_type": "Function",
"digest": {
"function_hash": "221589819375939541502721851894602973056",
"length": 2842.0
},
"deprecated": false
},
{
"id": "CVE-2021-45462-96f5d491",
"target": {
"function": "_gtpv1_u_recv_cb",
"file": "src/sgwu/gtp-path.c"
},
"signature_version": "v1",
"source": "https://github.com/open5gs/open5gs/commit/a0f2535cb5a29bba6dbbccdb90c74ccd770cc700",
"signature_type": "Function",
"digest": {
"function_hash": "108230382947362361426818551219694048171",
"length": 4038.0
},
"deprecated": false
}
]
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-45462.json"
"2026-04-11T23:37:22Z"