CVE-2026-7780

MEDIUM

Open5GS smf-registrations Endpoint udm-sm.c udm_state_operational denial of service

Title source: cna
STIX 2.1

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.

References (5)

Core 5
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-360977 | Open5GS smf-registrations Endpoint udm-sm.c udm_state_operational denial of service
https://vuldb.com/vuln/360977
Signature, Permissions Required signature permissions-required
VDB-360977 | CTI Indicators (IOB, IOC, TTP, IOA)
https://vuldb.com/vuln/360977/cti
Third Party Advisory third-party-advisory
Submit #806250 | Open5gs UDM v2.7.7 Denial of Service
https://vuldb.com/submit/806250
Exploit exploit issue-tracking
https://github.com/open5gs/open5gs/issues/4419

Scores

CVSS v3 4.3
EPSS 0.0028
EPSS Percentile 19.2%
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 04, 2026
Tracked Since May 05, 2026