VULNERABILITY INTELLIGENCE

CVE-2023-37007

CVSS score5.3 MEDIUM

EPSS probability0.27%

CISA KEVNot currently listed

Published2025-01-22

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Description

Open5GS MME versions <= 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 Cancel` message missing a required `MME_UE_S1AP_ID` field to repeatedly crash the MME, resulting in denial of service.

Weakness classification

134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-617

Primary references

cve@mitre.org — Exploit, Technical Description, Third Party Advisory