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    CVE-2025-65805

    OpenAirInterface CN5G AMF<=v2.1.9 has a buffer overflow vulnerability in processing NAS messages. Unauthorized remote attackers can launch a denial-of-service attack and potentially execute malicious code by accessing port N1 and sending an imsi string longer than 1000 to AMF.

    Published:Jan 7, 2026
    Last Modified:Jan 29, 2026
    EPS:Jan 7, 2026
    EPSS Score:0.00127
    CVSS Score:7.5

    Affected Products

    Vendor
    Openairinterface
    Product
    Cn5g Amf
    Vendor
    Openairinterface
    Product
    Oai-cn5g-amf

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-121 Stack-based Buffer Overflow

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    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