{"id":"CVE-2023-37023","aliases":["EUVD-2023-40943","GHSA-x7pq-2j3f-24rv"],"status":"published","title":"Open5GS MME versions \u003c= 2.6.4 contain a reachable assertion in the `Uplink NAS Transport` packet...","description":"Open5GS MME versions \u003c= 2.6.4 contain a reachable assertion in the `Uplink NAS Transport` packet handler. A packet missing its `MME_UE_S1AP_ID` field causes Open5gs to crash; an attacker may repeatedly send such packets to cause denial of service.","severity":{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-10","score":0.00813,"percentile":0.57319,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-617"],"published":"2025-01-22T00:00:00Z","modified":"2026-10-28T02:31:14Z","products":[{"vendor":"open5gs","product":"open5gs"}],"references":[{"url":"https://cellularsecurity.org/ransacked","tags":["Exploit","Technical Description","Third Party Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-37023","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-x7pq-2j3f-24rv"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/37xxx/CVE-2023-37023.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2023-37023","description":"Open5GS MME versions \u003c= 2.6.4 contain a reachable assertion in the `Uplink NAS Transport` packet handler. A packet missing its `MME_UE_S1AP_ID` field causes Open5gs to crash; an attacker may repeatedly send such packets to cause denial of service.","status":"published","published":"2025-01-22T00:00:00Z","modified":"2025-02-06T21:32:06.253Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-617"],"updated_at":"2026-11-02T14:35:16.454633Z"}],"euvd":[{"id":"EUVD-2023-40943","description":"Open5GS MME versions \u003c= 2.6.4 contain a reachable assertion in the `Uplink NAS Transport` packet handler. A packet missing its `MME_UE_S1AP_ID` field causes Open5gs to crash; an attacker may repeatedly send such packets to cause denial of service.","status":"published","published":"2025-01-22T00:00:00Z","modified":"2025-02-06T21:32:06Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-03T00:04:02.347135Z"}],"ghsa":[{"id":"GHSA-x7pq-2j3f-24rv","title":"Open5GS MME versions \u003c= 2.6.4 contain a reachable assertion in the `Uplink NAS Transport` packet...","description":"Open5GS MME versions \u003c= 2.6.4 contain a reachable assertion in the `Uplink NAS Transport` packet handler. A packet missing its `MME_UE_S1AP_ID` field causes Open5gs to crash; an attacker may repeatedly send such packets to cause denial of service.","status":"published","published":"2025-01-22T15:32:35Z","modified":"2025-02-07T03:33:04Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-617"],"updated_at":"2026-11-02T14:59:49.949775Z"}],"nvd":[{"id":"CVE-2023-37023","description":"Open5GS MME versions \u003c= 2.6.4 contain a reachable assertion in the `Uplink NAS Transport` packet handler. A packet missing its `MME_UE_S1AP_ID` field causes Open5gs to crash; an attacker may repeatedly send such packets to cause denial of service.","status":"published","published":"2025-01-22T15:15:11.913Z","modified":"2026-06-17T06:07:31.28Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-617"],"updated_at":"2026-11-02T14:09:20.080574Z"}],"osv":[{"id":"CVE-2023-37023","description":"Open5GS MME versions \u003c= 2.6.4 contain a reachable assertion in the `Uplink NAS Transport` packet handler. A packet missing its `MME_UE_S1AP_ID` field causes Open5gs to crash; an attacker may repeatedly send such packets to cause denial of service.","status":"published","published":"2025-01-22T00:00:00Z","modified":"2026-10-28T02:31:14.912509881Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:32.510144Z"}]}}