How severe is CVE-2026-30080?

CVE-2026-30080 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 high, and availability none.

Is CVE-2026-30080 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-30080?

CVE-2026-30080 affects Openairinterface Oai-cn5g-amf. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-30080?

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.

Does CVE-2026-30080 have an EU (EUVD) identifier?

Yes. CVE-2026-30080 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-20503.

When was CVE-2026-30080 published?

CVE-2026-30080 was published on 2026-04-08 and last updated on 2026-06-17.

CVE-2026-30080

CVE-2026-30080 is a high-severity vulnerability in Openairinterface Oai-cn5g-amf 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-294.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (16th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-20503
Weakness: CWE-294
Affected product: Openairinterface Oai-cn5g-amf
Published: 2026-04-08
Last modified: 2026-06-17

Description

OpenAirInterface v2.2.0 accepts Security Mode Complete without any integrity protection. Configuration has supported integrity NIA1 and NIA2. But if an UE sends initial registration request with only security capability IA0, OpenAirInterface accepts and proceeds. This downgrade security context can lead to the possibility of replay attack.

Frequently asked questions

What is CVE-2026-30080?: OpenAirInterface v2.2.0 accepts Security Mode Complete without any integrity protection. Configuration has supported integrity NIA1 and NIA2. But if an UE sends initial registration request with only security capability IA0, OpenAirInterface accepts and proceeds. This downgrade security context can lead to the possibility of replay attack.
How severe is CVE-2026-30080?: CVE-2026-30080 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 high, and availability none.
Is CVE-2026-30080 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-30080?: CVE-2026-30080 affects Openairinterface Oai-cn5g-amf. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-30080?: 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.
Does CVE-2026-30080 have an EU (EUVD) identifier?: Yes. CVE-2026-30080 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-20503.
When was CVE-2026-30080 published?: CVE-2026-30080 was published on 2026-04-08 and last updated on 2026-06-17.

References

https://gitlab.eurecom.fr/oai/cn5g/oai-cn5g-amf/-/issues/78

Affected products (1)

cpe:2.3:a:openairinterface:oai-cn5g-amf:2.2.0:*:*:*:*:*:*:*

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