Description
An array index out of bounds vulnerability in the AMF component of free5GC v4.0.1 allows remote attackers to cause a denial of service via a crafted 5GS Mobile Identity in a NAS Registration Request message. The issue occurs in the GetSUCI method (NAS_MobileIdentity5GS.go) when accessing index 5 of a 5-element array, leading to a runtime panic and AMF crash.
References (1)
Core 1
Core References
Issue Tracking
https://github.com/free5gc/free5gc/issues/747
Scores
CVSS v3
7.5
EPSS
0.0022
EPSS Percentile
44.3%
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
yes
Technical Impact
partial
Details
CWE
CWE-125
Status
published
Products (1)
free5gc/free5gc
4.0.1
Published
Feb 13, 2026
Tracked Since
Feb 18, 2026