CVE-2026-4531CWE-404

Free5GC AMF handler.go HandleRegistrationComplete denial of service

Medium · published March 22, 2026

CVSS v4.0
6.9
EPSS
1%
Percentile
54.5
In the wild
Unconfirmed
What it is

A weakness has been identified in Free5GC 4.1.0. Affected is the function HandleRegistrationComplete of the file internal/gmm/handler.go of the component AMF. Executing a manipulation can lead to denial of service. The attack may be performed from remote. This patch is called 52e9386401ce56ea773c5aa587d4cdf7d53da799. It is best practice to apply a patch to resolve this issue.

The record
Technical detail
CVSS v4.0
6.9 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X
EPSS
0.00752 · 54.5th percentile
Weakness
CWE-404 · Improper Resource Shutdown or Release
Published
2026-03-22T01:32Z
EPSS history
Timeline
  • 22 MAR 01:32Z
    Free5GC AMF handler.go HandleRegistrationComplete denial of service
    cvelistv5