The remote Fedora 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-e39149a8a0 advisory.

    x86: buffer overrun with shadow paging + tracing [XSA-477, CVE-2025-58150]     x86: incomplete IBPB for vCPU isolation [XSA-479, CVE-2026-23553]

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 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-844012d662 advisory.

    x86: buffer overrun with shadow paging + tracing [XSA-477, CVE-2025-58150]     x86: incomplete IBPB for vCPU isolation [XSA-479, CVE-2026-23553]

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 SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:0329-1 advisory.

    - CVE-2025-58150: Fixed buffer overrun with shadow paging and       tracing (XSA-477) (bsc#1256745)
    - CVE-2026-23553: Fixed incomplete IBPB for vCPU isolation       (XSA-479) (bsc#1256747)

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 SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:0328-1 advisory.

    Security fixes:

    - CVE-2025-58150: Fixed buffer overrun with shadow paging and       tracing (XSA-477) (bsc#1256745)
    - CVE-2026-23553: Fixed incomplete IBPB for vCPU isolation       (XSA-479) (bsc#1256747)
    - CVE-2025-58149: Fixed incorrect removal od permissions on PCI       device unplug allow PV guests to access memory of devices no       longer assigned to it (XSA-476) (bsc#1252692)

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 Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Shadow mode tracing code uses a set of per-CPU variables to avoid cumbersome parameter passing. Some of     these variables are written to with guest controlled data, of guest controllable size. That size can be     larger than the variable, and bounding of the writes was missing. (CVE-2025-58150)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:0306-1 advisory.

    - CVE-2025-58150: Fixed buffer overrun with shadow paging and       tracing (XSA-477) (bsc#1256745)
    - CVE-2026-23553: Fixed incomplete IBPB for vCPU isolation       (XSA-479) (bsc#1256747)

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 packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:0589-1 advisory.

    - CVE-2025-58150: buffer overrun with shadow paging + tracing (XSA-477) (bsc#1256745).
    - CVE-2026-23553: incomplete IBPB for vCPU isolation (XSA-479) (bsc#1256747).

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.

ID	Name	Product	Family	Published	Updated	Severity
299134	Fedora 42 : xen (2026-e39149a8a0)	Nessus	Fedora Local Security Checks	2/15/2026	4/30/2026	high
297756	Fedora 43 : xen (2026-844012d662)	Nessus	Fedora Local Security Checks	2/4/2026	4/30/2026	high
297193	SUSE SLED15 / SLES15 Security Update : xen (SUSE-SU-2026:0329-1)	Nessus	SuSE Local Security Checks	1/30/2026	4/30/2026	high
297200	SUSE SLES12 Security Update : xen (SUSE-SU-2026:0328-1)	Nessus	SuSE Local Security Checks	1/30/2026	4/30/2026	high
296777	Linux Distros Unpatched Vulnerability : CVE-2025-58150	Nessus	Misc.	1/27/2026	4/29/2026	high
297088	openSUSE 15 Security Update : xen (SUSE-SU-2026:0306-1)	Nessus	SuSE Local Security Checks	1/29/2026	4/30/2026	high
299716	SUSE SLED15 / SLES15 Security Update : xen (SUSE-SU-2026:0589-1)	Nessus	SuSE Local Security Checks	2/21/2026	4/30/2026	high

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