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SUSE SLES12 Security Update : xen (SUSE-SU-2026:2066-1)

high Nessus Plugin ID 317720

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Synopsis

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

Description

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2066-1 advisory.

 This update for xen fixes the following issues

 - CVE-2025-54505: Floating Point Divider State Sampling on AMD CPUs AMD-SN-7053 (bsc#1262428).
 - CVE-2025-54518: AMD-SN-7052: CPU OP Cache Corruption (bsc#1264066).
 - 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.

Solution

Update the affected packages.

See Also

https://bugzilla.suse.com/1262178

https://bugzilla.suse.com/1262180

https://bugzilla.suse.com/1262428

https://bugzilla.suse.com/1264066

http://www.nessus.org/u?64a8c35a

https://www.suse.com/security/cve/CVE-2025-54505

https://www.suse.com/security/cve/CVE-2025-54518

https://www.suse.com/security/cve/CVE-2026-23557

https://www.suse.com/security/cve/CVE-2026-23558

Plugin Details

Severity: High

ID: 317720

File Name: suse_SU-2026-2066-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 5/29/2026

Updated: 5/29/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 8.1

CVSS v2

Risk Factor: Medium

Base Score: 6.2

Temporal Score: 4.6

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

CVSS Score Source: CVE-2025-54518

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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

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

CVSS Score Source: CVE-2026-23558

CVSS v4

Risk Factor: High

Base Score: 7.3

Threat Score: 4.4

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

CPE: cpe:/o:novell:suse_linux:12, p-cpe:/a:novell:suse_linux:xen-tools, p-cpe:/a:novell:suse_linux:xen-tools-domu, p-cpe:/a:novell:suse_linux:xen, p-cpe:/a:novell:suse_linux:xen-libs, p-cpe:/a:novell:suse_linux:xen-devel, p-cpe:/a:novell:suse_linux:xen-libs-32bit, p-cpe:/a:novell:suse_linux:xen-doc-html

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

Exploit Ease: No known exploits are available

Patch Publication Date: 5/26/2026

Vulnerability Publication Date: 4/27/2026

Reference Information

CVE: CVE-2025-54505, CVE-2025-54518, CVE-2026-23557, CVE-2026-23558

IAVB: 2026-B-0069

SuSE: SUSE-SU-2026:2066-1