CVE-2026-8743

Medium

Description

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.

SeverityMedium

CVSS6.3

Exploit probability—

ProductOpen5gs

PublishedMay 17, 2026

First seenMay 17, 2026

Weakness typeCWE-285CWE-285 CWE-266CWE-266

How to fix

Patches

github.com/open5gs/open5gs/pull/4553
github.com/open5gs/open5gs/commit/5746b8576cfceec18ed87eb7d8cf11b1fb4cd8b1

Affected products

Product	Affected versions	Fixed in
open5gs open5gs	v ≤ 2.7.6	—

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