{"id":"CVE-2023-37009","details":"Open5GS MME versions \u003c= 2.6.4 contain an assertion that can be remotely triggered via a malformed ASN.1 packet over the S1AP interface. An attacker may send a `Handover Notification` message missing a required `MME_UE_S1AP_ID` field to repeatedly crash the MME, resulting in denial of service.","modified":"2026-04-10T05:00:26.056419Z","published":"2025-01-22T15:15:10.473Z","references":[{"type":"EVIDENCE","url":"https://cellularsecurity.org/ransacked"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/open5gs/open5gs","events":[{"introduced":"0"},{"last_affected":"99f7da154e0fc4a494b35d1e74c26d89b934d5bc"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"2.6.4"}]}}],"versions":["v0.1.0","v0.1.1","v0.2.0","v0.3.0","v0.3.1","v0.3.10","v0.3.2","v0.3.3","v0.3.4","v0.3.5","v0.3.6","v0.3.8","v0.4.1","v0.4.2","v0.4.3","v0.4.4","v0.5.0","v0.5.1","v0.5.2","v1.0.0","v1.1.0","v1.2.0","v1.2.1","v1.2.2","v1.2.3","v1.2.4","v1.3.0","v2.0.0","v2.0.18","v2.0.22","v2.1.0","v2.1.1","v2.1.3","v2.1.4","v2.1.5","v2.1.7","v2.2.0","v2.2.1","v2.2.6","v2.2.7","v2.2.8","v2.2.9","v2.3.0","v2.3.2","v2.3.6","v2.4.0","v2.4.1","v2.4.3","v2.4.4","v2.4.5","v2.4.7","v2.4.8","v2.4.9","v2.6.1","v2.6.2","v2.6.3","v2.6.4"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-37009.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L"}]}