{
  "document": {
    "category": "csaf_vex",
    "csaf_version": "2.0",
    "distribution": {
      "text": "TuxCare License Agreement",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Cloud Linux Inc. and provide a link to the original.",
        "title": "Terms of Use"
      }
    ],
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      "contact_details": "https://tuxcare.com/contact/",
      "name": "TuxCare",
      "namespace": "https://tuxcare.com/"
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        "summary": "Canonical URL",
        "url": "https://security.tuxcare.com/csaf/v2/els_os/centos-stream8els/vex/2025/cve-2025-35973-els_os-centos-stream8els.json"
      }
    ],
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      "generator": {
        "date": "2026-09-11T09:01:18Z",
        "engine": {
          "name": "pyCSAF"
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      },
      "id": "CVE-2025-35973-ELS_OS-CENTOS-STREAM8ELS",
      "initial_release_date": "2025-01-01T00:00:00Z",
      "revision_history": [
        {
          "date": "2025-01-01T00:00:00Z",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2026-09-09T13:18:49Z",
          "number": "2",
          "summary": "Official Publication"
        },
        {
          "date": "2026-09-11T09:01:18Z",
          "number": "3",
          "summary": "Update document"
        }
      ],
      "status": "final",
      "version": "3"
    },
    "title": "Security update on CVE-2025-35973"
  },
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        "category": "vendor",
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        },
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      },
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        },
        "product_reference": "microcode_ctl-4:20250512-2.el8.tuxcare.els1.x86_64",
        "relates_to_product_reference": "CentOS-Stream-8"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "microcode_ctl-4:20260812-2.el8.tuxcare.els1.x86_64 as a component of Community Enterprise Operating System 8",
          "product_id": "CentOS-Stream-8:microcode_ctl-4:20260812-2.el8.tuxcare.els1.x86_64"
        },
        "product_reference": "microcode_ctl-4:20260812-2.el8.tuxcare.els1.x86_64",
        "relates_to_product_reference": "CentOS-Stream-8"
      },
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        "category": "default_component_of",
        "full_product_name": {
          "name": "microcode_ctl-4:20260812-2.el8.x86_64 as a component of Community Enterprise Operating System 8",
          "product_id": "CentOS-Stream-8:microcode_ctl-4:20260812-2.el8.x86_64"
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        "relates_to_product_reference": "CentOS-Stream-8"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-35973",
      "cwe": {
        "id": "CWE-229",
        "name": "Improper Handling of Values"
      },
      "notes": [
        {
          "category": "description",
          "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": "Vulnerability description"
        }
      ],
      "product_status": {
        "fixed": [
          "CentOS-Stream-8:microcode_ctl-4:20260812-2.el8.tuxcare.els1.x86_64"
        ],
        "known_affected": [
          "CentOS-Stream-8:microcode_ctl-4:20240910-2.el8.tuxcare.els1.x86_64",
          "CentOS-Stream-8:microcode_ctl-4:20250211-2.el8.tuxcare.els1.x86_64",
          "CentOS-Stream-8:microcode_ctl-4:20250512-2.el8.tuxcare.els1.x86_64",
          "CentOS-Stream-8:microcode_ctl-4:20251111-2.el8.tuxcare.els1.x86_64",
          "CentOS-Stream-8:microcode_ctl-4:20260812-2.el8.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2025-35973"
        },
        {
          "category": "external",
          "summary": "https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01428.html",
          "url": "https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01428.html"
        }
      ],
      "release_date": "2026-08-11T17:17:00Z",
      "remediations": [
        {
          "category": "none_available",
          "date": "2026-09-09T12:11:54.278357Z",
          "details": "Affected",
          "product_ids": [
            "CentOS-Stream-8:microcode_ctl-4:20240910-2.el8.tuxcare.els1.x86_64",
            "CentOS-Stream-8:microcode_ctl-4:20250211-2.el8.tuxcare.els1.x86_64",
            "CentOS-Stream-8:microcode_ctl-4:20250512-2.el8.tuxcare.els1.x86_64",
            "CentOS-Stream-8:microcode_ctl-4:20251111-2.el8.tuxcare.els1.x86_64",
            "CentOS-Stream-8:microcode_ctl-4:20260812-2.el8.x86_64"
          ]
        },
        {
          "category": "vendor_fix",
          "date": "2026-09-11T09:00:46.519921Z",
          "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1789117244",
          "product_ids": [
            "CentOS-Stream-8:microcode_ctl-4:20260812-2.el8.tuxcare.els1.x86_64"
          ],
          "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1789117244"
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ]
    }
  ]
}