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    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.

    Published:Mar 22, 2026
    Last Modified:Apr 24, 2026
    EPS:Mar 22, 2026
    EPSS Score:0.00082
    CVSS Score:5.3

    Affected Products

    Vendor
    Free5gc
    Product
    Free5gc

    Exploits

    No exploit reference

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    CVE-2026-30050 (CVSS 7.5) — An issue in the ModifyAMFEventSubscriptionProcedure function (processor/event_exposure.go) of free5gc v4.1.0 a…
    CVE-2026-30051 (CVSS 7.5) — An issue in the CreateUEContextProcedure function (/v1/ue-contexts/{supi}) of free5gc v4.1.0 allows attackers …
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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High