Detections
Analytics

Fedora 44 : xen (2026-24b84f97af)

critical Nessus Plugin ID 321439

Synopsis

The remote Fedora host is missing one or more security updates.

Description

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-24b84f97af advisory.

 x86 HVM I/O port list traversal [XSA-491, CVE-2026-42487] domctl lock open to abuse [XSA-492, CVE-2026-42489, CVE-2026-42490] Arm: Completion of memory accesses not guaranteed by completion of a TLBI [XSA-493, CVE-2025-10263] x86: mismatched mapcache metadata [XSA-494, CVE-2026-42488]

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.

Solution

Update the affected xen package.

See Also

https://bodhi.fedoraproject.org/updates/FEDORA-2026-24b84f97af

Plugin Details

Severity: Critical

ID: 321439

File Name: fedora_2026-24b84f97af.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 6/17/2026

Updated: 6/17/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.2

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:N

CVSS Score Source: CVE-2025-10263

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:fedoraproject:fedora:xen, cpe:/o:fedoraproject:fedora:44

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 6/12/2026

Vulnerability Publication Date: 6/9/2026

Reference Information

CVE: CVE-2025-10263, CVE-2026-42487, CVE-2026-42488, CVE-2026-42489, CVE-2026-42490

FEDORA: 2026-24b84f97af

IAVB: 2026-B-0151