CVE-2025-15686: Open5GS HSS Service fd_msg_sess_get denial of service

Published Aug 12, 2026
·
Updated

A vulnerability has been found in Open5GS up to 2.7.6. Affected by this issue is the function fdmsgsessget of the component HSS Service. Such manipulation of the argument Session-Id leads to denial of service. The attack may be performed from remote. The exploit has been disclosed to the public and may be used. The project locked and limited conversation to collaborators.

Affected Software

1 affected component
open5gs HSS Service<=2.7.6

Event History

Aug 12, 2026
CVE Published
via MITRE·02:30 AM
Data Sourced
via MITRE·02:30 AM
DescriptionSeverityWeakness
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Frequently Asked Questions

1

What is the severity of CVE-2025-15686?

The severity of CVE-2025-15686 is medium, rated at 4.3.

2

What does CVE-2025-15686 affect?

CVE-2025-15686 affects the Open5GS HSS Service component, specifically the function fd_msg_sess_get.

3

What type of attack does CVE-2025-15686 facilitate?

CVE-2025-15686 facilitates a denial of service attack that can be executed remotely.

4

How can I fix CVE-2025-15686?

To fix CVE-2025-15686, ensure you update Open5GS HSS Service to a version later than 2.7.6.

5

What is the impact of CVE-2025-15686?

The impact of CVE-2025-15686 is denial of service, which disrupts the availability of the service.

Contact

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