Exposure of sensitive information caused by shared microarchitectural predictor state that influences transient execution for some Intel(R) Processors within VMX non-root (guest) operation may allow an information disclosure. Unprivileged software adversary with an authenticated user combined with a high complexity attack may enable data exposure. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (none) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (none) and availability (none) impacts.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has a package installed that is affected by a vulnerability as referenced in the SUSE-SU-2026:2963-1 advisory.

    This update for ucode-intel fixes the following issue:

    - CVE-2025-35979: data leaks fixed in 20260512 release (bsc#1265189).


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.

The remote SUSE Linux SLES12 host has a package installed that is affected by a vulnerability as referenced in the SUSE- SU-2026:2981-1 advisory.

    This update for ucode-intel fixes the following issue:

    - CVE-2025-35979: data leaks fixed in 20260512 release (bsc#1265189).

    Changes for ucode-intel:

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

      **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**

      | Processor      | Stepping | F-M-S/PI    | Old Ver  | New Ver  | Products       |:---------------|:---------|:------------|:---------|:---------|:---------       | 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

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.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Exposure of sensitive information caused by shared microarchitectural predictor state that influences     transient execution for some Intel(R) Processors within VMX non-root (guest) operation may allow an     information disclosure. Unprivileged software adversary with an authenticated user combined with a high     complexity attack may enable data exposure. This result may potentially occur via local access when attack     requirements are present without special internal knowledge and requires no user interaction. The     potential vulnerability may impact the confidentiality (high), integrity (none) and availability (none) of     the vulnerable system, resulting in subsequent system confidentiality (high), integrity (none) and     availability (none) impacts. (CVE-2025-35979)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Severity
326981	SUSE SLED15 / SLES15 Security Update : ucode-intel (SUSE-SU-2026:2963-1)	Nessus	SuSE Local Security Checks	medium
326931	SUSE SLES12 Security Update : ucode-intel (SUSE-SU-2026:2981-1)	Nessus	SuSE Local Security Checks	medium
314475	Linux Distros Unpatched Vulnerability : CVE-2025-35979	Nessus	Misc.	medium

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CVE-2025-35979

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