CVE-2023-36998

HighCVSS 8.9/10Last modified Jul 5, 2026

Description

The NextEPC MME <= 1.0.1 (fixed in commit a8492c9c5bc0a66c6999cb5a263545b32a4109df) contains a stack-based buffer overflow vulnerability in the Emergency Number List decoding method. An attacker may send a NAS message containing an oversized Emergency Number List value to the MME to overwrite the stack with arbitrary bytes. An attacker with a cellphone connection to any base station managed by the MME may exploit this vulnerability without having to authenticate with the LTE core.

Metrics

CVSS 3.1 8.9/10CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:H

Weakness enumeration

CWE-121

Affected software

No affected versions have been published.

Timeline

Published
Jan 22, 2025
Last modified
Jul 5, 2026
NVD status
Deferred

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CVE-2023-36998: High severity, CVSS 8.9 | Vulnix