CVE-2026-7518

MEDIUM

Open5GS AMF SBI Endpoint sdmsubscription-notify amf_namf_callback_handle_sdm_data_change_notify denial of service

Title source: cna
STIX 2.1

Description

A flaw has been found in Open5GS up to 2.7.7. This issue affects the function amf_namf_callback_handle_sdm_data_change_notify of the file /namf-callback/v1/{id}/sdmsubscription-notify of the component AMF SBI Endpoint. This manipulation of the argument changeItem.newValue causes denial of service. The attack can be initiated remotely. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.

References (5)

Core 5
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-360332 | Open5GS AMF SBI Endpoint sdmsubscription-notify amf_namf_callback_handle_sdm_data_change_notify denial of service
https://vuldb.com/vuln/360332
Signature, Permissions Required signature permissions-required
VDB-360332 | CTI Indicators (IOB, IOC, TTP, IOA)
https://vuldb.com/vuln/360332/cti
Third Party Advisory third-party-advisory
Submit #804023 | Open5GS AMF v2.7.7 Denial of Service
https://vuldb.com/submit/804023
Exploit exploit issue-tracking
https://github.com/open5gs/open5gs/issues/4395

Scores

CVSS v3 4.3
EPSS 0.0036
EPSS Percentile 28.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-404
Status published
Products (8)
None/Open5GS 2.7.0
None/Open5GS 2.7.1
None/Open5GS 2.7.2
None/Open5GS 2.7.3
None/Open5GS 2.7.4
None/Open5GS 2.7.5
None/Open5GS 2.7.6
None/Open5GS 2.7.7
Published May 01, 2026
Tracked Since May 01, 2026