How severe is CVE-2026-8288?

CVE-2026-8288 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-2026-8288 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-2026-8288?

CVE-2026-8288 affects Open5gs. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-8288?

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

Does CVE-2026-8288 have an EU (EUVD) identifier?

Yes. CVE-2026-8288 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29050.

When was CVE-2026-8288 published?

CVE-2026-8288 was published on 2026-05-11 and last updated on 2026-06-17.

CVE-2026-8288

CVE-2026-8288 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-2026-29050
Weakness: CWE-404
Affected product: Open5gs
Published: 2026-05-11
Last modified: 2026-06-17

Description

A vulnerability was determined in Open5GS up to 2.7.7. This affects the function gsm_handle_pdu_session_modification_qos_flow_descriptions of the file src/smf/gsm-handler.c of the component SMF. Executing a manipulation of the argument n1SmMsg can lead to denial of service. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. The pull request to fix this issue awaits acceptance.

Frequently asked questions

What is CVE-2026-8288?: A vulnerability was determined in Open5GS up to 2.7.7. This affects the function gsm_handle_pdu_session_modification_qos_flow_descriptions of the file src/smf/gsm-handler.c of the component SMF. Executing a manipulation of the argument n1SmMsg can lead to denial of service. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. The pull request to fix this issue awaits acceptance.
How severe is CVE-2026-8288?: CVE-2026-8288 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-2026-8288 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-2026-8288?: CVE-2026-8288 affects Open5gs. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-8288?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-8288 have an EU (EUVD) identifier?: Yes. CVE-2026-8288 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29050.
When was CVE-2026-8288 published?: CVE-2026-8288 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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