CVE-2026-86212: Open5GS AMF/MME improper authorization

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-06 · updated 2026-09-11
Weakness: CWE-266

Description

A vulnerability has been found in Open5GS 2.7.7/2.8.0. This vulnerability affects unknown code of the component AMF/MME. The manipulation leads to improper authorization. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used. The identifier of the patch is 9468de94caed2fc940f4a23cbf734651896d0fde. To fix this issue, it is recommended to deploy a patch.

Affected products

Open5GS: 2.7.7, 2.8.0

References

https://github.com/open5gs/open5gs/
https://github.com/open5gs/open5gs/commit/9468de94caed2fc940f4a23cbf734651896d0fde
https://github.com/open5gs/open5gs/issues/4680
https://vuldb.com/cve/CVE-2026-86212
https://vuldb.com/submit/896623
https://vuldb.com/vuln/399348
https://vuldb.com/vuln/399348/cti

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