The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:10352 advisory.

    X.Org is an open-source implementation of the X Window System. It provides the basic low-level     functionality that full-fledged graphical user interfaces are designed upon.

    Security Fix(es):

    * xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Out-of-Bounds Read in X Rendering Extension     Animated Cursors (CVE-2025-49175)

    * xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Integer Overflow in Big Requests Extension     (CVE-2025-49176)

    * xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Unprocessed Client Request Due to Bytes to Ignore     (CVE-2025-49178)

    * xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Integer overflow in X Record extension     (CVE-2025-49179)

    * xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Integer Overflow in X Resize, Rotate and Reflect     (RandR) Extension (CVE-2025-49180)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2025:10348 advisory.

    Xwayland is an X server for running X clients under Wayland.

    Security Fix(es):

    * xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Out-of-Bounds Read in X Rendering Extension     Animated Cursors (CVE-2025-49175)

    * xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Integer Overflow in Big Requests Extension     (CVE-2025-49176)

    * xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Unprocessed Client Request Due to Bytes to Ignore     (CVE-2025-49178)

    * xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Integer overflow in X Record extension     (CVE-2025-49179)

    * xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Integer Overflow in X Resize, Rotate and Reflect     (RandR) Extension (CVE-2025-49180)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2025-1062 advisory.

    A flaw was found in the X Rendering extension's handling of animated cursors. If a client provides no     cursors, the server assumes at least one is present, leading to an out-of-bounds read and potential crash.
    (CVE-2025-49175)

    A flaw was found in the Big Requests extension. The request length is multiplied by 4 before checking     against the maximum allowed size, potentially causing an integer overflow and bypassing the size check.
    (CVE-2025-49176)

    A flaw was found in the XFIXES extension. The XFixesSetClientDisconnectMode handler does not validate the     request length, allowing a client to read unintended memory from previous requests. (CVE-2025-49177)

    A flaw was found in the X server's request handling. Non-zero 'bytes to ignore' in a client's request can     cause the server to skip processing another client's request, potentially leading to a denial of service.
    (CVE-2025-49178)

    The RecordSanityCheckRegisterClients() function in the X Record extension implementation of the Xserver     checks for the request length, but does not check for integer overflow.

    A client might send a very large value for either the number of clients or the number of protocol ranges     that will cause an integer overflow in the request length computation, defeating the check for request     length. (CVE-2025-49179)

    A flaw was found in the RandR extension, where the RRChangeProviderProperty function does not properly     validate input. This issue leads to an integer overflow when computing the total size to allocate.
    (CVE-2025-49180)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote host is affected by the vulnerability described in GLSA-202608-14 (X.Org X server, XWayland: Multiple Vulnerabilities)

    Multiple vulnerabilities have been discovered in X.Org X server, XWayland. Please review the CVE     identifiers referenced below for details.

Tenable has extracted the preceding description block directly from the Gentoo Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Published	Updated	Severity
241410	RHEL 9 : xorg-x11-server (RHSA-2025:10352)	Nessus	Red Hat Local Security Checks	7/7/2025	7/7/2025	high
241415	RHEL 9 : xorg-x11-server-Xwayland (RHSA-2025:10348)	Nessus	Red Hat Local Security Checks	7/7/2025	7/7/2025	high
241732	Amazon Linux 2023 : xorg-x11-server-Xwayland, xorg-x11-server-Xwayland-devel (ALAS2023-2025-1062)	Nessus	Amazon Linux Local Security Checks	7/10/2025	7/14/2025	high
337634	GLSA-202608-14 : X.Org X server, XWayland: Multiple Vulnerabilities	Nessus	Gentoo Local Security Checks	8/18/2026	8/18/2026	critical

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