CVE-2023-37015

HIGH

Open5GS <= 2.6.4 - Denial of Service via Malformed S1AP Path Switch Request

Title source: llm

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 `Path Switch 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 8.6

EPSS 0.0072

EPSS Percentile 48.9%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation poc

Automatable yes

Technical Impact total

Details

CWE

CWE-617

Status published

Products (1)

open5gs/open5gs < 2.6.4

Published Jan 22, 2025

Tracked Since Feb 18, 2026