Is CVE-2026-8120 actively exploited?

No active exploitation of CVE-2026-8120 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-8120 be exploited remotely?

Yes. CVE-2026-8120 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-8120?

CVE-2026-8120 has a CVSS score of 6.5 (MEDIUM).

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MEDIUM

CVE-2026-8120

CWE-404Published: May 8, 2026· Updated: May 11, 2026

6.5

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:11.7th

Official Description

A flaw has been found in Open5GS up to 2.7.7. The affected element is the function nssf_nnrf_nsselection_handle_get_from_amf_or_vnssf of the file /src/nssf/nnssf-handler.c of the component NSSF. Executing a manipulation can lead to denial of service. The attack can be executed remotely. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.

NVD Source

Technical Analysis

CVE-2026-8120 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.5.