The remote SUSE Linux SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1331-1 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 SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1335-1 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 SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1328-1 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 Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:21699 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: xwayland: X.Org X server: Denial of Service via integer underflow in XKB compatibility map     handling (CVE-2026-33999)

    * xwayland: xorg: X.Org X server: Information disclosure and denial of service via out-of-bounds read in     XKB geometry processing. (CVE-2026-34000)

    * xorg: xwayland: X.Org X server: Use-after-free vulnerability leads to server crash and potential memory     corruption (CVE-2026-34001)

    * xorg: xwayland: X.Org X server: Information disclosure or Denial of Service via out-of-bounds read in     XKB modifier map handling (CVE-2026-34002)

    * xorg: xwayland: X.Org X server: Information exposure and denial of service via out-of-bounds memory     access (CVE-2026-34003)

    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.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
306683	SUSE SLES15: xorg-x11-server / xorg-x11-server-Xvfb / xorg-x11-server-extra / etc (SUSE-SU-2026:1331-1)	Nessus	SuSE Local Security Checks	2026/4/16	2026/6/26	critical
306686	SUSE SLES15 Security Update : xorg-x11-server (SUSE-SU-2026:1335-1)	Nessus	SuSE Local Security Checks	2026/4/16	2026/5/8	critical
306708	SUSE SLED15 / SLES15 Security Update : xwayland (SUSE-SU-2026:1328-1)	Nessus	SuSE Local Security Checks	2026/4/16	2026/5/8	critical
317465	RHEL 9 : xorg-x11-server (RHSA-2026:21699)	Nessus	Red Hat Local Security Checks	2026/5/28	2026/5/28	critical

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