CVE-2026-8250 | THREATINT

Description

A vulnerability has been found in Open5GS up to 2.7.7. This affects the function smf_n4_build_qos_flow_to_modify_list of the file /src/smf/n4-build.c of the component SMF. Such manipulation leads to denial of service. The attack can be executed remotely. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

PUBLISHED Reserved 2026-05-10 | Published 2026-05-10 | Updated 2026-05-10 | 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

2026-05-10:	Advisory disclosed
2026-05-10:	VulDB entry created
2026-05-10:	VulDB entry last update

Credits

FrankLin (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/362547 (VDB-362547 | Open5GS SMF n4-build.c smf_n4_build_qos_flow_to_modify_list denial of service) vdb-entry technical-description

vuldb.com/vuln/362547/cti (VDB-362547 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/submit/808476 (Submit #808476 | Open5gs SMF v2.7.7 Denial of Service) third-party-advisory

github.com/open5gs/open5gs/issues/4444 exploit issue-tracking

github.com/open5gs/open5gs/ product

cve.org (CVE-2026-8250)

nvd.nist.gov (CVE-2026-8250)

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