CVE-2026-8222

MEDIUM

Open5GS sm-policies Endpoint nbsf-handler.c pcf_nbsf_management_handle_register denial of service

Title source: cna
STIX 2.1

Description

A vulnerability has been found in Open5GS up to 2.7.7. Affected is the function pcf_nbsf_management_handle_register of the file src/pcf/nbsf-handler.c of the component sm-policies Endpoint. Such manipulation leads to denial of service. The attack may be performed from remote. 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-362439 | Open5GS sm-policies Endpoint nbsf-handler.c pcf_nbsf_management_handle_register denial of service
https://vuldb.com/vuln/362439
Signature, Permissions Required signature permissions-required
VDB-362439 | CTI Indicators (IOB, IOC, TTP, IOA)
https://vuldb.com/vuln/362439/cti
Third Party Advisory third-party-advisory
Submit #808427 | Open5gs PCF v2.7.7 Denial of Service
https://vuldb.com/submit/808427
Exploit exploit issue-tracking
https://github.com/open5gs/open5gs/issues/4437

Scores

CVSS v3 5.3
EPSS 0.0048
EPSS Percentile 37.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-404
Status published
Products (9)
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
open5gs/open5gs < 2.7.7
Published May 10, 2026
Tracked Since May 10, 2026