CVE-2026-4531
Free5GC AMF handler.go HandleRegistrationComplete denial of service
CVSS Score
5.3
EPSS Score
0.1%
EPSS Percentile
18th
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.
| CWE | CWE-404 |
| Vendor | n/a |
| Product | free5gc |
| Published | Mar 22, 2026 |
| Last Updated | Mar 23, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
n/a / Free5GC
4.1.0
References
vuldb.com: https://vuldb.com/?id.352319 vuldb.com: https://vuldb.com/?ctiid.352319 vuldb.com: https://vuldb.com/?submit.774073 github.com: https://github.com/free5gc/free5gc/issues/792 github.com: https://github.com/free5gc/amf/pull/198 github.com: https://github.com/free5gc/amf/commit/52e9386401ce56ea773c5aa587d4cdf7d53da799 github.com: https://github.com/free5gc/free5gc/
Credits
🔍 shovon0203 (VulDB User)