CVE-2023-37014

HIGH

Open5GS <= 2.6.4 - Denial of Service via Malformed ASN.1 Packet

Title source: llm
STIX 2.1

Description

Open5GS MME versions <= 2.6.4 contains an assertion that can be remotely triggered via a malformed ASN.1 packet over the S1AP interface. An attacker may send a `UE Context Release Request` message missing a required `MME_UE_S1AP_ID` field to repeatedly crash the MME, resulting in denial of service.

References (1)

Core 1
Core References
Exploit, Technical Description, Third Party Advisory
https://cellularsecurity.org/ransacked

Scores

CVSS v3 7.5
EPSS 0.0075
EPSS Percentile 50.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-400
Status published
Products (1)
open5gs/open5gs < 2.6.4
Published Jan 22, 2025
Tracked Since Feb 18, 2026