Home

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.

PUBLISHED Reserved 2026-04-30 | Published 2026-05-01 | Updated 2026-05-01 | Assigner VulDB




MEDIUM: 5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
MEDIUM: 4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
MEDIUM: 4.3CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
4.0AV:N/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR

Problem types

Denial of Service

Timeline

2026-04-30:Advisory disclosed
2026-04-30:VulDB entry created
2026-04-30:VulDB entry last update

Credits

ZiyuLin (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/360332 (VDB-360332 | Open5GS AMF SBI Endpoint sdmsubscription-notify amf_namf_callback_handle_sdm_data_change_notify denial of service) vdb-entry technical-description

vuldb.com/vuln/360332/cti (VDB-360332 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/submit/804023 (Submit #804023 | Open5GS AMF v2.7.7 Denial of Service) third-party-advisory

github.com/open5gs/open5gs/issues/4395 exploit issue-tracking

github.com/open5gs/open5gs/ product

cve.org (CVE-2026-7518)

nvd.nist.gov (CVE-2026-7518)

Download JSON