CVE-2026-7706

MEDIUM

Open5GS AMF gmm-handler.c gmm_handle_service_request denial of service

Title source: cna
STIX 2.1

Description

A vulnerability has been found in Open5GS up to 2.7.7. This issue affects the function gmm_handle_service_request of the file /src/amf/gmm-handler.c of the component AMF. The manipulation leads to denial of service. The attack can be initiated 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.

References (5)

Core 5
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-360882 | Open5GS AMF gmm-handler.c gmm_handle_service_request denial of service
https://vuldb.com/vuln/360882
Signature, Permissions Required signature permissions-required
VDB-360882 | CTI Indicators (IOB, IOC, TTP, IOA)
https://vuldb.com/vuln/360882/cti
Third Party Advisory third-party-advisory
Submit #805698 | Open5GS AMF v2.7.7 Denial of Service
https://vuldb.com/submit/805698
Exploit exploit issue-tracking
https://github.com/open5gs/open5gs/issues/4409

Scores

CVSS v3 4.3
EPSS 0.0004
EPSS Percentile 11.5%
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 03, 2026
Tracked Since May 04, 2026