SUSE-SU-2026:23459-1
Vulnerability from csaf_suse - Published: 2026-09-02 09:34 - Updated: 2026-09-14 16:12Summary
Security update for ucode-intel
Severity
Important
Notes
Title of the patch: Security update for ucode-intel
Description of the patch: This update for ucode-intel fixes the following issues:
- Intel CPU Microcode was updated to the 20260812 release (bsc#1274785)
- Removed MTL/06-aa-04/c0 due to functional issues observed when loading the MCU in some platforms.
- Intel CPU Microcode was updated to the 20260811 release (bsc#1274785)
- Security updates for INTEL-SA-01379 / CVE-2025-31936
- Security updates for INTEL-SA-01404 / CVE-2025-31938
- Security updates for INTEL-SA-01423 / CVE-2026-20917
- Security updates for INTEL-SA-01428 / CVE-2025-35973
- Security updates for INTEL-SA-01435 / CVE-2026-20716
- Security updates for INTEL-SA-01441 / CVE-2026-20760
- Security updates for INTEL-SA-01442 / CVE-2026-20713 / CVE-2026-20901
- Security updates for INTEL-SA-01443 / CVE-2026-20707
- Update for functional issues.
- Intel CPU Microcode was updated to the 20260512 release (bsc#1265189)
- CVE-2025-35979: Security updates for INTEL-SA-01420
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01420.html
- 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
| 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
- Update to microcode-20260227:
* Update for functional issues. Refer to Intel Xeon 6700P-B/6500P-B-Series SoC with P-Cores for details.
##### Updated Platforms
| Processor | Stepping | F-M-S/PI | Old Ver | New Ver | Products
|:---------------|:---------|:------------|:---------|:---------|:---------
| GNR-D | B0/B1 | 06-ae-01/97 | 010002f3 | 01000303 | Xeon 6700P-B/6500P-B Series SoC with P-Cores
Patchnames: SUSE-SL-Micro-6.2-1584
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
5.7 (Medium)
Affected products
Recommended
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Linux Micro 6.2:ucode-intel-20260812-160000.1.1.x86_64 | — |
Vendor Fix
|
Threats
Impact
important
5.6 (Medium)
Affected products
Recommended
1 product, the same list as for
CVE-2025-31936
Threats
Impact
important
7.2 (High)
Affected products
Recommended
1 product, the same list as for
CVE-2025-31936
Threats
Impact
important
4.7 (Medium)
Affected products
Recommended
1 product, the same list as for
CVE-2025-31936
Threats
Impact
moderate
5.6 (Medium)
Affected products
Recommended
1 product, the same list as for
CVE-2025-31936
Threats
Impact
important
7.2 (High)
Affected products
Recommended
1 product, the same list as for
CVE-2025-31936
Threats
Impact
important
6.3 (Medium)
Affected products
Recommended
1 product, the same list as for
CVE-2025-31936
Threats
Impact
important
5.5 (Medium)
Affected products
Recommended
1 product, the same list as for
CVE-2025-31936
Threats
Impact
important
5.3 (Medium)
Affected products
Recommended
1 product, the same list as for
CVE-2025-31936
Threats
Impact
moderate
5.3 (Medium)
Affected products
Recommended
1 product, the same list as for
CVE-2025-31936
Threats
Impact
important
References
35 references
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"notes": [
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"text": "Improper handling of overlap between protected memory ranges for some Intel(R) Xeon(R) 6 processors when using Intel(R) TDX within SMM may allow an escalation of privilege. SMM adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are present with special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.",
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"notes": [
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"text": "Insufficient granularity of access control in some subsystem for some Intel(R) Xeon(R) 6 Scalable processors with Intel(R) TDX may allow an information disclosure. Authorized 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 with special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (none) and availability (none) impacts.",
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}
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"text": "https://www.suse.com/security/cve/CVE-2025-35973"
}
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"notes": [
{
"category": "general",
"text": "Improper handling of values for some Intel(R) Processors within Ring 0: Kernel, Hypervisor and Bare Metal OS may allow an escalation of privilege. Authorized adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are present with special internal knowledge and require no user interaction. The potential vulnerability may impact the confidentiality (low), integrity (low) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (high) and availability (none) impacts.",
"title": "CVE description"
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"notes": [
{
"category": "general",
"text": "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.",
"title": "CVE description"
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"date": "2026-09-02T09:34:17Z",
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},
{
"cve": "CVE-2026-20707",
"ids": [
{
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"text": "https://www.suse.com/security/cve/CVE-2026-20707"
}
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"notes": [
{
"category": "general",
"text": "Hardware logic contains race conditions for some 3rd Gen Intel(R) Xeon(R) Scalable Processors within Ring 3: unprivileged software may allow a denial of service. Unprivileged software adversary with an authenticated user combined with a high complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are not present with special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (high) impacts.",
"title": "CVE description"
}
],
"product_status": {
"recommended": [
"SUSE Linux Micro 6.2:ucode-intel-20260812-160000.1.1.x86_64"
]
},
"references": [
{
"category": "external",
"summary": "CVE-2026-20707",
"url": "https://www.suse.com/security/cve/CVE-2026-20707"
},
{
"category": "external",
"summary": "SUSE Bug 1274785 for CVE-2026-20707",
"url": "https://bugzilla.suse.com/1274785"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
"product_ids": [
"SUSE Linux Micro 6.2:ucode-intel-20260812-160000.1.1.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 5.6,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"SUSE Linux Micro 6.2:ucode-intel-20260812-160000.1.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2026-09-02T09:34:17Z",
"details": "important"
}
],
"title": "CVE-2026-20707"
},
{
"cve": "CVE-2026-20713",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2026-20713"
}
],
"notes": [
{
"category": "general",
"text": "Always-incorrect control flow implementation in some firmware for some Intel(R) Xeon(R) processors may allow an escalation of privilege. System software adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (high) and availability (none) impacts.",
"title": "CVE description"
}
],
"product_status": {
"recommended": [
"SUSE Linux Micro 6.2:ucode-intel-20260812-160000.1.1.x86_64"
]
},
"references": [
{
"category": "external",
"summary": "CVE-2026-20713",
"url": "https://www.suse.com/security/cve/CVE-2026-20713"
},
{
"category": "external",
"summary": "SUSE Bug 1274785 for CVE-2026-20713",
"url": "https://bugzilla.suse.com/1274785"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
"product_ids": [
"SUSE Linux Micro 6.2:ucode-intel-20260812-160000.1.1.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 7.2,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N",
"version": "3.1"
},
"products": [
"SUSE Linux Micro 6.2:ucode-intel-20260812-160000.1.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2026-09-02T09:34:17Z",
"details": "important"
}
],
"title": "CVE-2026-20713"
},
{
"cve": "CVE-2026-20716",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2026-20716"
}
],
"notes": [
{
"category": "general",
"text": "Improper access control for some Intel(R) Processors within Ring 3: User Applications may allow an escalation of privilege. Simple hardware adversary with an authenticated user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are present with special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.",
"title": "CVE description"
}
],
"product_status": {
"recommended": [
"SUSE Linux Micro 6.2:ucode-intel-20260812-160000.1.1.x86_64"
]
},
"references": [
{
"category": "external",
"summary": "CVE-2026-20716",
"url": "https://www.suse.com/security/cve/CVE-2026-20716"
},
{
"category": "external",
"summary": "SUSE Bug 1274785 for CVE-2026-20716",
"url": "https://bugzilla.suse.com/1274785"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
"product_ids": [
"SUSE Linux Micro 6.2:ucode-intel-20260812-160000.1.1.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 6.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
},
"products": [
"SUSE Linux Micro 6.2:ucode-intel-20260812-160000.1.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2026-09-02T09:34:17Z",
"details": "important"
}
],
"title": "CVE-2026-20716"
},
{
"cve": "CVE-2026-20760",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2026-20760"
}
],
"notes": [
{
"category": "general",
"text": "Improper handling of overlap between protected memory ranges in some microcode for some Intel(R) Processors within Ring 0: Hypervisor may allow an escalation of privilege. Authorized adversary with a privileged user combined with a low complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.",
"title": "CVE description"
}
],
"product_status": {
"recommended": [
"SUSE Linux Micro 6.2:ucode-intel-20260812-160000.1.1.x86_64"
]
},
"references": [
{
"category": "external",
"summary": "CVE-2026-20760",
"url": "https://www.suse.com/security/cve/CVE-2026-20760"
},
{
"category": "external",
"summary": "SUSE Bug 1274785 for CVE-2026-20760",
"url": "https://bugzilla.suse.com/1274785"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
"product_ids": [
"SUSE Linux Micro 6.2:ucode-intel-20260812-160000.1.1.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"SUSE Linux Micro 6.2:ucode-intel-20260812-160000.1.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2026-09-02T09:34:17Z",
"details": "important"
}
],
"title": "CVE-2026-20760"
},
{
"cve": "CVE-2026-20901",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2026-20901"
}
],
"notes": [
{
"category": "general",
"text": "Improper input validation for some Intel(R) Xeon(R) processors within firmware may allow an escalation of privilege. Startup code and smm adversary with a privileged user combined with a high complexity attack may enable data alteration. 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 (none), integrity (none) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (high) and availability (none) impacts.",
"title": "CVE description"
}
],
"product_status": {
"recommended": [
"SUSE Linux Micro 6.2:ucode-intel-20260812-160000.1.1.x86_64"
]
},
"references": [
{
"category": "external",
"summary": "CVE-2026-20901",
"url": "https://www.suse.com/security/cve/CVE-2026-20901"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
"product_ids": [
"SUSE Linux Micro 6.2:ucode-intel-20260812-160000.1.1.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N",
"version": "3.1"
},
"products": [
"SUSE Linux Micro 6.2:ucode-intel-20260812-160000.1.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2026-09-02T09:34:17Z",
"details": "moderate"
}
],
"title": "CVE-2026-20901"
},
{
"cve": "CVE-2026-20917",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2026-20917"
}
],
"notes": [
{
"category": "general",
"text": "Exposure of sensitive information caused by incorrect data forwarding during transient execution for some Intel(R) Processors within Ring 0: Hypervisor and Kernel may allow information disclosure. System software adversary with a privileged user combined with a high complexity attack may enable data exposure. This result may potentially occur via local access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (none) and availability (none) impacts.",
"title": "CVE description"
}
],
"product_status": {
"recommended": [
"SUSE Linux Micro 6.2:ucode-intel-20260812-160000.1.1.x86_64"
]
},
"references": [
{
"category": "external",
"summary": "CVE-2026-20917",
"url": "https://www.suse.com/security/cve/CVE-2026-20917"
},
{
"category": "external",
"summary": "SUSE Bug 1274785 for CVE-2026-20917",
"url": "https://bugzilla.suse.com/1274785"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
"product_ids": [
"SUSE Linux Micro 6.2:ucode-intel-20260812-160000.1.1.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N",
"version": "3.1"
},
"products": [
"SUSE Linux Micro 6.2:ucode-intel-20260812-160000.1.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2026-09-02T09:34:17Z",
"details": "important"
}
],
"title": "CVE-2026-20917"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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