CVE-2026-4531 (GCVE-0-2026-4531)
Vulnerability from cvelistv5 – Published: 2026-03-22 01:32 – Updated: 2026-03-23 15:34 X_Open Source
VLAI
EPSS
VEX
Title
Free5GC AMF handler.go HandleRegistrationComplete denial of service
Summary
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.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-23 15:34 UTC
CWE
- CWE-404 - Denial of Service
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.352319 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.352319 | signaturepermissions-required |
| https://vuldb.com/?submit.774073 | third-party-advisory |
| https://github.com/free5gc/free5gc/issues/792 | issue-tracking |
| https://github.com/free5gc/amf/pull/198 | issue-trackingpatch |
| https://github.com/free5gc/amf/commit/52e9386401c… | patch |
| https://github.com/free5gc/free5gc/ | product |
Impacted products
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