CVE-2026-7583 MEDIUM

CVE-2026-7583: Open5GS BSF context.c bsf_sess_find_by_ipv6prefix denial of service

Vendor N/A
Product Open5GS
Weakness CWE-404
Published May 1, 2026
Last update May 1, 2026

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 1, 2026 CVE published
May 1, 2026 Record updated