CVE-2026-7587

MEDIUM

Open5GS AMF nsmf-handler.c amf_nsmf_pdusession_handle_update_sm_context denial of service

Title source: cna
STIX 2.1

Description

A vulnerability has been found in Open5GS up to 2.7.7. This vulnerability affects the function amf_nsmf_pdusession_handle_update_sm_context of the file /src/amf/nsmf-handler.c of the component AMF. The manipulation leads to denial of service. It is possible to initiate the attack 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-360540 | Open5GS AMF nsmf-handler.c amf_nsmf_pdusession_handle_update_sm_context denial of service
https://vuldb.com/vuln/360540
Signature, Permissions Required signature permissions-required
VDB-360540 | CTI Indicators (IOB, IOC, TTP, IOA)
https://vuldb.com/vuln/360540/cti
Third Party Advisory third-party-advisory
Submit #804339 | Open5gs AMF v2.7.7 Denial of Service
https://vuldb.com/submit/804339
Exploit exploit issue-tracking
https://github.com/open5gs/open5gs/issues/4408

Scores

CVSS v3 4.3
EPSS 0.0031
EPSS Percentile 22.0%
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 (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 01, 2026
Tracked Since May 01, 2026