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CVE-2026-8289

Open5GS SMF nsmf-handler.c smf_nsmf_handle_update_data_in_vsmf denial of service

CVSS 5.3 MEDIUMEPSS 0.4%CWE-404
Vexday Risk Score
33Attention
SSVC decision (CISA)
Attend
PoC available → attend closely
CVSS 5.3EPSS 0.4%KEV nãoPoC públicaNuclei Metasploit Patch
Lifecycle
11 May 2026Published on NVD
Recommendation: Plan a near-term fix — a public PoC already exists.
A vulnerability was identified in Open5GS up to 2.7.7. This vulnerability affects the function smf_nsmf_handle_update_data_in_vsmf of the file /src/smf/nsmf-handler.c of the component SMF. The manipulation of the argument qosFlowProfile leads to denial of service. Remote exploitation of the attack is possible. The exploit is publicly available and might be used. The project was informed of the problem early through an issue report but has not responded yet.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
Affected products
n/a · Open5GS
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

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