Debian dsa-6030 : intel-microcode - security update

high Nessus Plugin ID 271205

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Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 12 / 13 host has a package installed that is affected by multiple vulnerabilities as referenced in the dsa-6030 advisory.

- ------------------------------------------------------------------------- Debian Security Advisory DSA-6030-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso October 22, 2025 https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : intel-microcode CVE ID : CVE-2025-20053 CVE-2025-20109 CVE-2025-21090 CVE-2025-22839 CVE-2025-22840 CVE-2025-22889 CVE-2025-24305 CVE-2025-26403 CVE-2025-32086 Debian Bug : 1110983

This update ships updated CPU microcode for some types of Intel CPUs and provides mitigations for security vulnerabilities which could result in privilege escalation or denial of service.

For the oldstable distribution (bookworm), these problems have been fixed in version 3.20250812.1~deb12u1.

For the stable distribution (trixie), these problems have been fixed in version 3.20250812.1~deb13u1.

We recommend that you upgrade your intel-microcode packages.

For the detailed security status of intel-microcode please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/intel-microcode

Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/

Mailing list: [email protected]

Tenable has extracted the preceding description block directly from the Debian 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

Upgrade the intel-microcode packages.

Plugin Details

Severity: High

ID: 271205

File Name: debian_DSA-6030.nasl

Version: 1.1

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 10/22/2025

Updated: 10/22/2025

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6

Temporal Score: 4.4

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

CVSS Score Source: CVE-2025-20109

CVSS v3

Risk Factor: High

Base Score: 7.9

Temporal Score: 6.9

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

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

CVSS Score Source: CVE-2025-22889

CVSS v4

Risk Factor: High

Base Score: 7.3

Threat Score: 4.2

Threat Vector: CVSS:4.0/E:U

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

CVSS Score Source: CVE-2025-22839

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:intel-microcode, cpe:/o:debian:debian_linux:12.0, cpe:/o:debian:debian_linux:13.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 10/22/2025

Vulnerability Publication Date: 8/12/2025

Reference Information

CVE: CVE-2025-20053, CVE-2025-20109, CVE-2025-21090, CVE-2025-22839, CVE-2025-22840, CVE-2025-22889, CVE-2025-24305, CVE-2025-26403, CVE-2025-32086

Detections

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