CVE-2025-56394

HIGH

Free5gc - Heap Buffer Overflow

Title source: rule
STIX 2.1

Description

Free5gc 4.0.1 is vulnerable to Buffer Overflow. The AMF incorrectly validates the 5GS mobile identity, resulting in slice reference overflow.

References (2)

Core 2
Core References
Exploit, Issue Tracking, Patch
https://github.com/free5gc/free5gc/issues/690

Scores

CVSS v3 7.5
EPSS 0.0008
EPSS Percentile 23.7%
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 poc
Automatable no
Technical Impact partial

Details

CWE
CWE-122
Status published
Products (1)
free5gc/free5gc 4.0.1
Published Sep 23, 2025
Tracked Since Feb 18, 2026