CVE-2026-4531

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.

CVSS v3 5.3 MEDIUM
CVSS v2.0 5.0 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://github.com/free5gc/amf/commit/52e9386401ce56ea773c5aa587d4cdf7d53da799
https://github.com/free5gc/amf/pull/198
https://github.com/free5gc/free5gc/
https://github.com/free5gc/free5gc/issues/792
https://vuldb.com/?ctiid.352319
https://vuldb.com/?id.352319
https://vuldb.com/?submit.774073
https://github.com/free5gc/free5gc/issues/792

Configurations

No configuration.

History

No history.

Information

Published : 2026-03-22 02:15

Updated : 2026-03-23 16:16

NVD link : CVE-2026-4531

Mitre link : CVE-2026-4531

CVE.ORG link : CVE-2026-4531

JSON object : View

Products Affected

No product.

CWE

CWE-404

Improper Resource Shutdown or Release

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