CVE-2026-7780 | THREATINT

Description

A weakness has been identified in Open5GS up to 2.7.7. Affected by this vulnerability is the function udm_state_operational of the file /src/udm/udm-sm.c of the component smf-registrations Endpoint. Executing a manipulation can lead to denial of service. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

PUBLISHED Reserved 2026-05-04 | Published 2026-05-04 | Updated 2026-05-04 | 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

2026-05-04:	Advisory disclosed
2026-05-04:	VulDB entry created
2026-05-04:	VulDB entry last update

Credits

FrankyLin (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/360977 (VDB-360977 | Open5GS smf-registrations Endpoint udm-sm.c udm_state_operational denial of service) vdb-entry technical-description

vuldb.com/vuln/360977/cti (VDB-360977 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/submit/806250 (Submit #806250 | Open5gs UDM v2.7.7 Denial of Service) third-party-advisory

github.com/open5gs/open5gs/issues/4419 exploit issue-tracking

github.com/open5gs/open5gs/ product

cve.org (CVE-2026-7780)

nvd.nist.gov (CVE-2026-7780)

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