How severe is CVE-2026-30067?

CVE-2026-30067 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-30067 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.

How do I fix CVE-2026-30067?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-30067 published?

CVE-2026-30067 was published on 2026-08-27 and last updated on 2026-08-31.

CVE-2026-30067

CVE-2026-30067 is a high-severity vulnerability with a CVSS 3.x base score of 7.5. 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-770.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-770
Published: 2026-08-27
Last modified: 2026-08-31

Description

An issue in the complexQueryFilterSubprocess function in the NRF Discovery service of free5gc v4.0.1 allows attackers to cause a Denial of Service (DoS) via a crafted input.

Frequently asked questions

What is CVE-2026-30067?: An issue in the complexQueryFilterSubprocess function in the NRF Discovery service of free5gc v4.0.1 allows attackers to cause a Denial of Service (DoS) via a crafted input.
How severe is CVE-2026-30067?: CVE-2026-30067 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-30067 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.
How do I fix CVE-2026-30067?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-30067 published?: CVE-2026-30067 was published on 2026-08-27 and last updated on 2026-08-31.

References

https://github.com/free5gc/free5gc/issues/771

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