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Description

A security flaw has been discovered in Open5GS up to 2.7.7. This issue affects the function smf_nsmf_handle_update_data_in_vsmf of the file /src/smf/nsmf-handler.c of the component SMF. The manipulation results in denial of service. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

PUBLISHED Reserved 2026-05-11 | Published 2026-05-11 | Updated 2026-05-11 | 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

2026-05-11:Advisory disclosed
2026-05-11:VulDB entry created
2026-05-11:VulDB entry last update

Credits

LinJu (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/362587 (VDB-362587 | Open5GS SMF nsmf-handler.c smf_nsmf_handle_update_data_in_vsmf denial of service) vdb-entry technical-description

vuldb.com/vuln/362587/cti (VDB-362587 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/submit/808507 (Submit #808507 | Open5gs SMF v2.7.7 Denial of Service) third-party-advisory

github.com/open5gs/open5gs/issues/4454 exploit issue-tracking

github.com/open5gs/open5gs/ product

cve.org (CVE-2026-8290)

nvd.nist.gov (CVE-2026-8290)

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