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    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.

    Published:Apr 8, 2026
    Last Modified:Apr 15, 2026
    EPS:Apr 8, 2026
    EPSS Score:0.00032
    CVSS Score:7.5

    Affected Products

    Vendor
    Openairinterface
    Product
    Oai-cn5g-amf

    Exploits

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

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High