The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:9303 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.

Detections

Analytics

RHEL 9 : xorg-x11-server and xorg-x11-server-Xwayland (RHSA-2025:9303)

medium Nessus Plugin ID 240254

Version 1.4

Version 1.3

Version 1.2

Version 1.1

Version 1.4 Jul 9, 2025, 1:33 AM IAVM reference (un-supersede a handful of incorrectly superseded IAVM references) Plugin Feed: 202507090133
Version 1.3 Jul 1, 2025, 1:15 AM IAVM reference Plugin Feed: 202507010115
Version 1.2 Jun 27, 2025, 8:01 PM Metadata (Add IAVM references) Plugin Feed: 202506272001
Version 1.1 Jun 23, 2025, 9:47 PM New Plugin Feed: 202506232147