Debian Linux - xen - None

Ubuntu Linux - [Unknown description]

The remote Fedora 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-0c9aff64a5 advisory.

    oxenstored keeps quota related use counts across domain destruction     [XSA-483, CVE-2026-23556]     Xenstored DoS via XS_RESET_WATCHES command [XSA-484, CVE-2026-23557]     grant table v2 race in status page mapping [XSA-486, CVE-2026-23558]     x86: Floating Point Divider State Sampling [XSA-488, CVE-2025-54505]

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-2026-883e88db68 advisory.

    oxenstored keeps quota related use counts across domain destruction     [XSA-483, CVE-2026-23556]     Xenstored DoS via XS_RESET_WATCHES command [XSA-484, CVE-2026-23557]     grant table v2 race in status page mapping [XSA-486, CVE-2026-23558]     x86: Floating Point Divider State Sampling [XSA-488, CVE-2025-54505]

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-2026-78cd69d9ae advisory.

    oxenstored keeps quota related use counts across domain destruction     [XSA-483, CVE-2026-23556]     Xenstored DoS via XS_RESET_WATCHES command [XSA-484, CVE-2026-23557]     grant table v2 race in status page mapping [XSA-486, CVE-2026-23558]     x86: Floating Point Divider State Sampling [XSA-488, CVE-2025-54505]

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

  - oxenstored keeps quota related use counts across domain destruction [XSA-483, CVE-2026-23556] Xenstored     DoS via XS_RESET_WATCHES command [XSA-484, CVE-2026-23557] grant table v2 race in status page mapping     [XSA-486, CVE-2026-23558] x86: Floating Point Divider State Sampling [XSA-488, CVE-2025-54505]     (CVE-2026-23556)

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

ID	Name	Product	Family	Severity
314598	Fedora 42 : xen (2026-0c9aff64a5)	Nessus	Fedora Local Security Checks	low
311776	Fedora 44 : xen (2026-883e88db68)	Nessus	Fedora Local Security Checks	low
311366	Fedora 43 : xen (2026-78cd69d9ae)	Nessus	Fedora Local Security Checks	low
310842	Linux Distros Unpatched Vulnerability : CVE-2026-23556	Nessus	Misc.	critical

Detections

Analytics

CVE-2026-23556

critical

Tenable Plugins

low

low

low

critical