SUSE SLES11 Security Update : microcode_ctl (SUSE-SU-2026:3124-1)

medium Nessus Plugin ID 328683

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Synopsis

The remote SUSE host is missing a security update.

Description

The remote SUSE Linux SLES11 host has a package installed that is affected by a vulnerability as referenced in the SUSE- SU-2026:3124-1 advisory.

This update for microcode_ctl fixes the following issue:

- CVE-2025-35979: shared microarchitectural predictor state in VMX non-root operation could lead to data leaks (bsc#1265189).

Changes for microcode_ctl:

- Intel CPU Microcode was updated to the 20260512 release (bsc#1265189):

* Update for various functional issues.
### New Platforms | Processor | Stepping | F-M-S/PI | Old Ver | New Ver | Products |:---------------|:---------|:------------|:---------|:---------|:--------- | PTL 404 | A1 | 06-cc-03/90 | | 0000011b | Intel Core Ultra Processor (Series 3) | PTL-H 484/12Xe | A0/B0 | 06-cc-02/90 | | 0000011b | Intel Core Ultra Processor (Series 3) ### Updated Platforms | ARL-H | A1 | 06-c5-02/82 | 0000011b | 00000121 | Core Ultra Processor (Series 2) | ARL-S/HX (8P) | B0 | 06-c6-02/82 | 0000011b | 00000121 | Core Ultra Processor (Series 2) | EMR-SP | A1 | 06-cf-02/87 | 210002d3 | 210002e0 | Xeon Scalable Gen5 | GNR-AP/SP | Bx/Hx/Lx | 06-ad-01/95 | 01000405 | 01000423 | Xeon 6900/6700/6500 Series Processors with P-Cores | GNR-D | B0/B1 | 06-ae-01/97 | 01000303 | 01000307 | Xeon 6700P-B/6500P-B Series SoC with P-Cores | GNR-SP R1S | Bx/Hx/Lx | 06-ad-01/20 | 0a000133 | 0a000142 | Xeon 6700/6500-Series Processors with P-Cores | LNL | B0 | 06-bd-01/80 | 00000125 | 00000126 | Core Ultra 200 V Series Processor | SPR-SP | E4/S2 | 06-8f-07/87 | 2b000661 | 2b000670 | Xeon Scalable Gen4 | SPR-SP | E5/S3 | 06-8f-08/87 | 2b000661 | 2b000670 | Xeon Scalable Gen4 | SRF-AP/SP | C0 | 06-af-03/01 | 03000382 | 030003a3 | Xeon 6900/6700-Series Processors with E-Cores

- Intel CPU Microcode was updated to the 20260227 release:

* Update for functional issues. Refer to Intel Xeon 6700P-B/6500P-B-Series SoC with P-Cores for details.
* ### Updated Platforms
* | GNR-D | B0/B1 | 06-ae-01/97 | 010002f3 | 01000303 | Xeon 6700P-B/6500P-B Series SoC with P-Cores

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected microcode_ctl package.

Plugin Details

Severity: Medium

ID: 328683

File Name: suse_SU-2026-3124-1.nasl

Version: 1.1

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 7/21/2026

Updated: 7/21/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.77

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-2025-35979

CVSS v3

Risk Factor: Medium

Base Score: 4.7

Temporal Score: 4.1

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

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

CVSS v4

Risk Factor: Medium

Base Score: 6.8

Threat Score: 3.3

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

CPE: cpe:/o:novell:suse_linux:11, p-cpe:/a:novell:suse_linux:microcode_ctl

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: 7/20/2026

Vulnerability Publication Date: 5/12/2026

Reference Information

CVE: CVE-2025-35979

SuSE: SUSE-SU-2026:3124-1

Detections

Analytics