CVE-2026-7781
Deferred Deferred - Pending Action
Denial of Service in Open5GS 2.7.7

Publication date: 2026-05-04

Last updated on: 2026-05-04

Assigner: VulDB

Description
A security vulnerability has been detected in Open5GS up to 2.7.7. Affected by this issue is the function udm_nudm_uecm_handle_amf_registration_update of the file /src/udm/nudm-handler.c of the component amf-3gpp-access Endpoint. The manipulation leads to denial of service. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.
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Meta Information
Published
2026-05-04
Last Modified
2026-05-04
Generated
2026-06-16
AI Q&A
2026-05-05
EPSS Evaluated
2026-06-15
NVD
CVE-2026-7781
EUVD
EUVD-2026-27151
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
open5gs open5gs to 2.7.7 (inc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-404 The product does not release or incorrectly releases a resource before it is made available for re-use.
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Executive Summary

This vulnerability exists in Open5GS versions up to 2.7.7, specifically in the function udm_nudm_uecm_handle_amf_registration_update within the amf-3gpp-access Endpoint component. It allows an attacker to remotely manipulate this function, leading to a denial of service condition.

Impact Analysis

The vulnerability can be exploited remotely to cause a denial of service, which means that the affected Open5GS service could become unavailable or unresponsive, potentially disrupting network operations that rely on this component.

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