CVE-2026-8743 MEDIUM

CVE-2026-8743: Open5GS AMF/MME context.c ran_ue_find_by_amf_ue_ngap_id improper authorization

Vendor N/A
Product Open5GS
Weakness CWE-285
Published May 17, 2026
Last update May 21, 2026
View on NVD All CVEs

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:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A vulnerability was found in Open5GS up to 2.7.6. This impacts the function ran_ue_find_by_amf_ue_ngap_id of the file src/amf/context.c of the component AMF/MME. Performing a manipulation results in improper authorization. It is possible to initiate the attack remotely. The exploit has been made public and could be used. The patch is named 5746b8576cfceec18ed87eb7d8cf11b1fb4cd8b1. It is suggested to install a patch to address this issue.

Key dates

02Disclosure timeline

May 17, 2026 CVE published
May 21, 2026 Record updated