CVE-2026-15720 - Vulnerability Details - OpenCVE

In Open5GS through version 2.7.7 a pre-authentication heap out-of-bounds read in the AMF NAS 5GS mobile-identity handler may result in subscriber-wide denial of service.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation poc

Automatable yes

Technical Impact partial

Vendors	Products
Open5gs	Open5gs

No data.

No data.

References

Link	Providers
https://github.com/open5gs/open5gs/security/advisories/GHSA-f4mx-3x6p-cfwp

History

Wed, 15 Jul 2026 18:15:00 +0000

Type	Values Removed	Values Added
First Time appeared		Open5gs Open5gs open5gs
Vendors & Products		Open5gs Open5gs open5gs

Wed, 15 Jul 2026 14:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Tue, 14 Jul 2026 18:45:00 +0000

Type	Values Removed	Values Added
Description		In Open5GS through version 2.7.7 a pre-authentication heap out-of-bounds read in the AMF NAS 5GS mobile-identity handler may result in subscriber-wide denial of service.
Title		Pre-auth heap out-of-bounds read in the AMF NAS 5GS mobile-identity handler
Weaknesses		CWE-125
References		https://github.com/open5gs/open5gs/security/advisories/GHSA-f4mx-3x6p-cfwp
Metrics		cvssV3_1 `{'score': 8.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H'}`

MITRE

Status: PUBLISHED

Assigner: redhat-cnalr

Published: 2026-07-14T18:20:22.732Z

Updated: 2026-07-15T14:02:22.116Z

Reserved: 2026-07-14T12:29:33.633Z

Link: CVE-2026-15720

Vulnrichment

Updated: 2026-07-15T14:02:18.910Z

NVD

No data.

Redhat

No data.

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