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    CVE-2025-49179

    A flaw was found in the X Record extension. The RecordSanityCheckRegisterClients function does not check for an integer overflow when computing request length, which allows a client to bypass length checks.

    Published:Jun 17, 2025
    Last Modified:Jun 30, 2026
    EPS:Jun 17, 2025
    EPSS Score:0.00279
    CVSS Score:7.3

    Affected Products

    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Rhel Aus
    Vendor
    Redhat
    Product
    Rhel E4s
    Vendor
    Redhat
    Product
    Rhel Els
    Vendor
    Redhat
    Product
    Rhel Eus
    Vendor
    Redhat
    Product
    Rhel Eus Long Life
    Vendor
    Redhat
    Product
    Rhel Tus

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-190 Integer Overflow or Wraparound

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-92 Forced Integer Overflow

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    References

    https://access.redhat.com/errata/RHSA-2025:10258
    https://access.redhat.com/errata/RHSA-2025:10342
    https://access.redhat.com/errata/RHSA-2025:10343
    https://access.redhat.com/errata/RHSA-2025:10344
    https://access.redhat.com/errata/RHSA-2025:10346
    https://access.redhat.com/errata/RHSA-2025:10347
    https://access.redhat.com/errata/RHSA-2025:10348
    https://access.redhat.com/errata/RHSA-2025:10349
    https://access.redhat.com/errata/RHSA-2025:10350
    https://access.redhat.com/errata/RHSA-2025:10351
    https://access.redhat.com/errata/RHSA-2025:10352
    https://access.redhat.com/errata/RHSA-2025:10355
    https://access.redhat.com/errata/RHSA-2025:10356
    https://access.redhat.com/errata/RHSA-2025:10360
    https://access.redhat.com/errata/RHSA-2025:10370
    https://access.redhat.com/errata/RHSA-2025:10374
    https://access.redhat.com/errata/RHSA-2025:10375
    https://access.redhat.com/errata/RHSA-2025:10376
    https://access.redhat.com/errata/RHSA-2025:10377
    https://access.redhat.com/errata/RHSA-2025:10378
    https://access.redhat.com/errata/RHSA-2025:10381
    https://access.redhat.com/errata/RHSA-2025:10410
    https://access.redhat.com/errata/RHSA-2025:9303
    https://access.redhat.com/errata/RHSA-2025:9304
    https://access.redhat.com/errata/RHSA-2025:9305
    https://access.redhat.com/errata/RHSA-2025:9306
    https://access.redhat.com/errata/RHSA-2025:9392
    https://access.redhat.com/errata/RHSA-2025:9964
    https://access.redhat.com/security/cve/CVE-2025-49179
    https://bugzilla.redhat.com/show_bug.cgi?id=2369978
    https://gitlab.freedesktop.org/xorg/xserver/-/commit/2bde9ca49a8fd9a1e6697d5e7ef837870d66f5d4
    https://www.x.org/wiki/Development/Security/
    https://lists.debian.org/debian-lts-announce/2025/06/msg00028.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