The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-cf9e55a7a0 advisory.

    Update to xserver 21.1.22, CVE fix for: CVE-2026-33999, CVE-2026-34000, CVE-2026-34001,     CVE-2026-34002, CVE-2026-34003

Tenable has extracted the preceding description block directly from the Fedora 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 version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 099423d1-3815-11f1-a284-589cfc10a551 advisory.

    X.Org project reports:
    Multiple issues have been found in the X server and Xwayland                  implementations published by X.Org for which we are releasing                  security fixes for in xorg-server-21.1.22 and xwayland-24.1.10.

Tenable has extracted the preceding description block directly from the FreeBSD 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 version of tigervnc installed on the remote host is prior to 1.16.2. It is, therefore, affected by multiple vulnerabilities as referenced in the SSA:2026-108-01 advisory.

    New tigervnc packages are available for Slackware 15.0 and -current to fix security issues.

Tenable has extracted the preceding description block directly from the tigervnc 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 Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-a7ec361237 advisory.

    Update to xserver 21.1.22, CVE fix for: CVE-2026-33999, CVE-2026-34000, CVE-2026-34001,     CVE-2026-34002, CVE-2026-34003

Tenable has extracted the preceding description block directly from the Fedora 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 Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-922a6d4e1a advisory.

    Update to xwayland 24.1.10, CVE fix for: CVE-2026-33999, CVE-2026-34000, CVE-2026-34001,     CVE-2026-34002, CVE-2026-34003

Tenable has extracted the preceding description block directly from the Fedora 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 Fedora 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-0b633ecc7c advisory.

    Update to xserver 21.1.22, CVE fix for: CVE-2026-33999, CVE-2026-34000, CVE-2026-34001, CVE-2026-34002,     CVE-2026-34003

Tenable has extracted the preceding description block directly from the Fedora 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 ALAS2023-2026-1613 advisory.

    XKB Integer Underflow in XkbSetCompatMap() (CVE-2026-33999)

    XKB Out-of-bounds Read in CheckSetGeom() (CVE-2026-34000)

    XSYNC Use-after-free in miSyncTriggerFence() (CVE-2026-34001)

    XKB Out-of-bounds read in CheckModifierMap() (CVE-2026-34002)

    XKB Buffer overflow in CheckKeyTypes() (CVE-2026-34003)

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.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1626 advisory.

    XKB Integer Underflow in XkbSetCompatMap() (CVE-2026-33999)

    XKB Out-of-bounds Read in CheckSetGeom() (CVE-2026-34000)

    XSYNC Use-after-free in miSyncTriggerFence() (CVE-2026-34001)

    XKB Out-of-bounds read in CheckModifierMap() (CVE-2026-34002)

    XKB Buffer overflow in CheckKeyTypes() (CVE-2026-34003)

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 openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:20560-1 advisory.

    - CVE-2026-33999: XKB Integer Underflow in XkbSetCompatMap() (bsc#1260922).
    - CVE-2026-34000: XKB Out-of-bounds Read in CheckSetGeom() (bsc#1260923).
    - CVE-2026-34001: XSYNC Use-after-free in miSyncTriggerFence() (bsc#1260924).
    - CVE-2026-34002: XKB Out-of-bounds read in CheckModifierMap() (bsc#1260925).
    - CVE-2026-34003: XKB Buffer overflow in CheckKeyTypes() (bsc#1260926).

Tenable has extracted the preceding description block directly from the SUSE 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 Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-492e92b32d advisory.

    Update to xserver 21.1.22, CVE fix for: CVE-2026-33999, CVE-2026-34000, CVE-2026-34001, CVE-2026-34002,     CVE-2026-34003

Tenable has extracted the preceding description block directly from the Fedora 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 ALAS2023-2026-1614 advisory.

    XKB Integer Underflow in XkbSetCompatMap() (CVE-2026-33999)

    XKB Out-of-bounds Read in CheckSetGeom() (CVE-2026-34000)

    XSYNC Use-after-free in miSyncTriggerFence() (CVE-2026-34001)

    XKB Out-of-bounds read in CheckModifierMap() (CVE-2026-34002)

    XKB Buffer overflow in CheckKeyTypes() (CVE-2026-34003)

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 Fedora 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-0174d1953a advisory.

    Update to xwayland 24.1.11

    ----

    Update to xwayland 24.1.10, CVE fix for: CVE-2026-33999, CVE-2026-34000, CVE-2026-34001,     CVE-2026-34002, CVE-2026-34003

Tenable has extracted the preceding description block directly from the Fedora 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	名称	产品	系列	发布时间	最近更新时间	严重程度
310256	Fedora 44 : xorg-x11-server (2026-cf9e55a7a0)	Nessus	Fedora Local Security Checks	2026/4/25	2026/5/8	critical
306639	FreeBSD : xwayland -- Multiple vulnerabilities (099423d1-3815-11f1-a284-589cfc10a551)	Nessus	FreeBSD Local Security Checks	2026/4/16	2026/5/8	critical
307481	Slackware Linux 15.0 / current tigervnc Multiple Vulnerabilities (SSA:2026-108-01)	Nessus	Slackware Local Security Checks	2026/4/18	2026/5/8	critical
310079	Fedora 43 : xorg-x11-server (2026-a7ec361237)	Nessus	Fedora Local Security Checks	2026/4/24	2026/5/8	critical
310211	Fedora 44 : xorg-x11-server-Xwayland (2026-922a6d4e1a)	Nessus	Fedora Local Security Checks	2026/4/25	2026/5/8	critical
310423	Fedora 42 : tigervnc (2026-0b633ecc7c)	Nessus	Fedora Local Security Checks	2026/4/27	2026/5/8	critical
311305	Amazon Linux 2023 : xorg-x11-server-Xwayland, xorg-x11-server-Xwayland-devel (ALAS2023-2026-1613)	Nessus	Amazon Linux Local Security Checks	2026/4/30	2026/5/8	critical
311347	Amazon Linux 2023 : tigervnc, tigervnc-icons, tigervnc-license (ALAS2023-2026-1626)	Nessus	Amazon Linux Local Security Checks	2026/4/30	2026/5/8	critical
309148	openSUSE 16 Security Update : xwayland (openSUSE-SU-2026:20560-1)	Nessus	SuSE Local Security Checks	2026/4/22	2026/5/8	critical
310260	Fedora 43 : tigervnc (2026-492e92b32d)	Nessus	Fedora Local Security Checks	2026/4/25	2026/5/8	critical
311303	Amazon Linux 2023 : xorg-x11-server-common, xorg-x11-server-devel, xorg-x11-server-source (ALAS2023-2026-1614)	Nessus	Amazon Linux Local Security Checks	2026/4/30	2026/5/8	critical
313031	Fedora 42 : xorg-x11-server-Xwayland (2026-0174d1953a)	Nessus	Fedora Local Security Checks	2026/5/7	2026/5/8	critical

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