Is CVE-2026-8290 actively exploited?

No active exploitation of CVE-2026-8290 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-8290 be exploited remotely?

Yes. CVE-2026-8290 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-8290?

CVE-2026-8290 has a CVSS score of 6.5 (MEDIUM).

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MEDIUM

CVE-2026-8290

CWE-404Published: May 11, 2026· Updated: May 13, 2026

6.5

CVSS v3.1

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

Official Description

A security flaw has been discovered in Open5GS up to 2.7.7. This issue affects the function smf_nsmf_handle_update_data_in_vsmf of the file /src/smf/nsmf-handler.c of the component SMF. The manipulation results in denial of service. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

NVD Source

Technical Analysis

CVE-2026-8290 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.