CVE-2026-7536

MEDIUM

Open5GS BSF pcfBindings bsf_sess_add_by_ip_address denial of service

Title source: cna
STIX 2.1

Description

A vulnerability was determined in Open5GS up to 2.7.7. This vulnerability affects the function bsf_sess_add_by_ip_address of the file /nbsf-management/v1/pcfBindings of the component BSF. Executing a manipulation of the argument ipv4Addr can lead to denial of service. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized. 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-360353 | Open5GS BSF pcfBindings bsf_sess_add_by_ip_address denial of service
https://vuldb.com/vuln/360353
Signature, Permissions Required signature permissions-required
VDB-360353 | CTI Indicators (IOB, IOC, TTP, IOA)
https://vuldb.com/vuln/360353/cti
Third Party Advisory third-party-advisory
Submit #804292 | Open5gs BSF v2.7.7 Denial of Service
https://vuldb.com/submit/804292
Exploit exploit issue-tracking
https://github.com/open5gs/open5gs/issues/4400

Scores

CVSS v3 5.3
EPSS 0.0038
EPSS Percentile 29.6%
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 (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 01, 2026
Tracked Since May 01, 2026