A transient execution vulnerability within AMD CPUs may allow a local user-privileged attacker to leak data via the floating point divisor unit, potentially resulting in loss of confidentiality.

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 SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1657-1 advisory.

    - CVE-2025-54505: floating point divider state sampling on AMD CPUs AMD-SN-7053 (bsc#1262428).
    - CVE-2026-23557: Xenstored DoS via XS_RESET_WATCHES command (bsc#1262178).
    - CVE-2026-23558: grant table v2 race in status page mapping (bsc#1262180).

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-2026-78cd69d9ae 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.

  - A transient execution vulnerability within AMD CPUs may allow a local user-privileged attacker to leak     data via the floating point divisor unit, potentially resulting in loss of confidentiality.
    (CVE-2025-54505)

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

ID	Name	Product	Family	Severity
311776	Fedora 44 : xen (2026-883e88db68)	Nessus	Fedora Local Security Checks	low
311741	SUSE SLES15 Security Update : xen (SUSE-SU-2026:1657-1)	Nessus	SuSE Local Security Checks	low
311366	Fedora 43 : xen (2026-78cd69d9ae)	Nessus	Fedora Local Security Checks	low
307400	Linux Distros Unpatched Vulnerability : CVE-2025-54505	Nessus	Misc.	low

Detections

Analytics

CVE-2025-54505

low

Tenable Plugins

low

low

low

low