How severe is CVE-2026-8291?

CVE-2026-8291 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2026-8291 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-8291?

CVE-2026-8291 affects Open5gs. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-8291?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-8291 have an EU (EUVD) identifier?

Yes. CVE-2026-8291 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29089.

When was CVE-2026-8291 published?

CVE-2026-8291 was published on 2026-05-11 and last updated on 2026-06-17.

CVE-2026-8291

CVE-2026-8291 is a medium-severity vulnerability in Open5gs with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-404.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 4.0
CVSS v4: 2.1
EPSS exploit prediction: 0% (30th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-29089
Weakness: CWE-404
Affected product: Open5gs
Published: 2026-05-11
Last modified: 2026-06-17

Description

A weakness has been identified in Open5GS up to 2.7.7. Impacted is the function ogs_nnrf_nfm_handle_nf_profile of the file lib/sbi/nnrf-handler.c of the component NRF. This manipulation causes denial of service. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks. The pull request to fix this issue awaits acceptance.

Frequently asked questions

What is CVE-2026-8291?: A weakness has been identified in Open5GS up to 2.7.7. Impacted is the function ogs_nnrf_nfm_handle_nf_profile of the file lib/sbi/nnrf-handler.c of the component NRF. This manipulation causes denial of service. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks. The pull request to fix this issue awaits acceptance.
How severe is CVE-2026-8291?: CVE-2026-8291 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2026-8291 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-8291?: CVE-2026-8291 affects Open5gs. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-8291?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-8291 have an EU (EUVD) identifier?: Yes. CVE-2026-8291 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29089.
When was CVE-2026-8291 published?: CVE-2026-8291 was published on 2026-05-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:*

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