CVE-2026-8289

LOWCVSS 2.1/10EPSS 0.37%

Last modified

CVE-2026-8289 is a low-severity vulnerability rated 2.1/10 on the CVSS scale. 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. EPSS estimates a 0.37% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
6.5/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS 4.0
2.1/10

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability
0.37%

29.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
Open5gsOpen5gs<= 2.7.7

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2026-8289?
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.
How severe is CVE-2026-8289?
CVE-2026-8289 has a CVSS score of 2.1/10 (LOW severity). The EPSS model estimates a 0.37% probability of exploitation in the next 30 days.
How do I fix CVE-2026-8289?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-8289?

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Source: NVD / NIST