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    CVE-2025-12748

    A flaw was discovered in libvirt in the XML file processing. More specifically, the parsing of user provided XML files was performed before the ACL checks. A malicious user with limited permissions could exploit this flaw by submitting a specially crafted XML file, causing libvirt to allocate too much memory on the host. The excessive memory consumption could lead to a libvirt process crash on the host, resulting in a denial-of-service condition.

    Published:Nov 7, 2025
    Last Modified:Jun 29, 2026
    EPS:Nov 11, 2025
    EPSS Score:0.00181
    CVSS Score:5.5

    Affected Products

    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    https://github.com/TERESH1/CVE-2025-12748

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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