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    CVE-2025-4373

    A flaw was found in GLib, which is vulnerable to an integer overflow in the g_string_insert_unichar() function. When the position at which to insert the character is large, the position will overflow, leading to a buffer underwrite.

    Published:May 6, 2025
    Last Modified:Jun 30, 2026
    EPS:May 6, 2025
    EPSS Score:0.00426
    CVSS Score:4.8

    Affected Products

    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Insights Proxy
    Vendor
    Redhat
    Product
    Openshift Distributed Tracing
    Vendor
    Redhat
    Product
    Rhel Aus
    Vendor
    Redhat
    Product
    Rhel E4s
    Vendor
    Redhat
    Product
    Rhel Eus
    Vendor
    Redhat
    Product
    Rhel Eus Long Life
    Vendor
    Redhat
    Product
    Rhel Tus

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    https://access.redhat.com/errata/RHSA-2025:10855
    https://access.redhat.com/errata/RHSA-2025:11140
    https://access.redhat.com/errata/RHSA-2025:11327
    https://access.redhat.com/errata/RHSA-2025:11373
    https://access.redhat.com/errata/RHSA-2025:11374
    https://access.redhat.com/errata/RHSA-2025:11662
    https://access.redhat.com/errata/RHSA-2025:12275
    https://access.redhat.com/errata/RHSA-2025:13335
    https://access.redhat.com/errata/RHSA-2025:14988
    https://access.redhat.com/errata/RHSA-2025:14989
    https://access.redhat.com/errata/RHSA-2025:14990
    https://access.redhat.com/errata/RHSA-2025:14991
    https://access.redhat.com/security/cve/CVE-2025-4373
    https://bugzilla.redhat.com/show_bug.cgi?id=2364265
    https://gitlab.gnome.org/GNOME/glib/-/issues/3677
    https://cert-portal.siemens.com/productcert/html/ssa-082556.html
    https://cert-portal.siemens.com/productcert/html/ssa-089022.html

    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