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    CVE-2026-19448

    IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 A stack memory corruption vulnerability exists in the AIX IPsec ESP decapsulation handler. Successful exploitation may corrupt kernel stack state and cause a system crash, resulting in denial of service.

    Published:Aug 20, 2026
    Last Modified:Aug 25, 2026
    EPS:Aug 20, 2026
    EPSS Score:0.00239
    CVSS Score:6.5

    Affected Products

    Vendor
    Ibm
    Product
    Aix
    Vendor
    Ibm
    Product
    Powervm Vios
    Vendor
    Ibm
    Product
    Vios

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-908 Use of Uninitialized Resource

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    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