How severe is CVE-2026-8248?

CVE-2026-8248 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-2026-8248 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-8248?

CVE-2026-8248 affects Open5gs. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-8248?

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

Does CVE-2026-8248 have an EU (EUVD) identifier?

Yes. CVE-2026-8248 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29001.

When was CVE-2026-8248 published?

CVE-2026-8248 was published on 2026-05-10 and last updated on 2026-06-17.

CVE-2026-8248

CVE-2026-8248 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% (37th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-29001
Weakness: CWE-404
Affected product: Open5gs
Published: 2026-05-10
Last modified: 2026-06-17

Description

A vulnerability was detected in Open5GS up to 2.7.7. The affected element is the function update_authorized_pcc_rule_and_qos of the file /src/smf/npcf-handler.c of the component SMF. The manipulation results in denial of service. The attack may be launched remotely. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Frequently asked questions

What is CVE-2026-8248?: A vulnerability was detected in Open5GS up to 2.7.7. The affected element is the function update_authorized_pcc_rule_and_qos of the file /src/smf/npcf-handler.c of the component SMF. The manipulation results in denial of service. The attack may be launched remotely. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
How severe is CVE-2026-8248?: CVE-2026-8248 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-2026-8248 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-8248?: CVE-2026-8248 affects Open5gs. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-8248?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-8248 have an EU (EUVD) identifier?: Yes. CVE-2026-8248 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29001.
When was CVE-2026-8248 published?: CVE-2026-8248 was published on 2026-05-10 and last updated on 2026-06-17.

References

Affected products (1)

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

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