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CentOS Linux 8.5 [TuxCare] Security Update: microcode_ctl Multiple Vulnerabilities (CENTOS8.5:CLSA-2025:1754381826)

medium Nessus Plugin ID 362339

Synopsis

The CentOS Linux host is missing one or more security updates.

Description

The CentOS Linux 8.5 host has a package installed that is affected by multiple vulnerabilities as referenced in the TuxCare CENTOS8.5:CLSA-2025:1754381826 advisory.

 - Uncaught exception in the core management mechanism for some Intel(R) Processors may allow an authenticated user to potentially enable denial of service via local access. (CVE-2025-20054)

 - Insufficient resource pool in the core management mechanism for some Intel(R) Processors may allow an authenticated user to potentially enable denial of service via local access. (CVE-2025-20103)

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 microcode_ctl package based on the guidance in TuxCare advisory CENTOS8.5:CLSA-2025:1754381826.

See Also

https://cve.tuxcare.com/els/releases/CLSA-2025:1754381826

http://www.nessus.org/u?31eea477

Plugin Details

Severity: Medium

ID: 362339

File Name: tuxcare_centos_8.5_CLSA-2025-1754381826.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 10/1/2026

Updated: 10/1/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6

Percentile: 96.73

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: Low

Base Score: 3.8

Temporal Score: 2.8

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

CVSS Score Source: CVE-2025-24495

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

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

CVSS Score Source: CVE-2025-20103

CVSS v4

Risk Factor: Medium

Base Score: 6.8

Threat Score: 4.3

Threat Vector: CVSS:4.0/E:U

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

CVSS Score Source: CVE-2025-20054

Vulnerability Information

Required KB Items: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list, Host/OS/extended-third-party

Exploit Ease: No known exploits are available

Patch Publication Date: 8/5/2025

Vulnerability Publication Date: 5/13/2025

Reference Information

CVE: CVE-2024-28956, CVE-2024-43420, CVE-2024-45332, CVE-2025-20012, CVE-2025-20054, CVE-2025-20103, CVE-2025-20623, CVE-2025-24495

CLSA: 2025:1754381826