CVE-2026-7583

MEDIUM

Open5GS BSF context.c bsf_sess_find_by_ipv6prefix denial of service

Title source: cna
STIX 2.1

Description

A flaw has been found in Open5GS up to 2.7.7. This issue affects the function bsf_sess_find_by_ipv6prefix of the file /src/bsf/context.c of the component BSF. This manipulation of the argument ipv6Prefix causes denial of service. It is possible to initiate the attack remotely. The exploit has been published 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-360530 | Open5GS BSF context.c bsf_sess_find_by_ipv6prefix denial of service
https://vuldb.com/vuln/360530
Signature, Permissions Required signature permissions-required
VDB-360530 | CTI Indicators (IOB, IOC, TTP, IOA)
https://vuldb.com/vuln/360530/cti
Third Party Advisory third-party-advisory
Submit #804322 | Open5gs BSF v2.7.7 Denial of Service
https://vuldb.com/submit/804322
Exploit exploit issue-tracking
https://github.com/open5gs/open5gs/issues/4401

Scores

CVSS v3 4.3
EPSS 0.0027
EPSS Percentile 18.5%
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 01, 2026
Tracked Since May 01, 2026