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    CVE-2026-16838

    IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to overwrite critical files and obtain sensitive information due to a time-of-check to time-of-use (TOCTOU) race condition.

    Published:Aug 19, 2026
    Last Modified:Aug 26, 2026
    EPS:Aug 19, 2026
    EPSS Score:0.00081
    CVSS Score:7

    Affected Products

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

    Exploits

    No exploit reference

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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