microcode_ctl: Fix of CVE-2025-35973

{
  "id": "a7e32bb1c6bcc4279b9a26cbe0219dfce0adf3d48e14f8a6635f36b071c0bd8c",
  "url": "https://osv.dev/vulnerability/CLSA-2026-1789116898",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "microcode_ctl: Fix of CVE-2025-35973",
    "summary": "- Update Intel CPU microcode to 20260812 release, addresses CVE-2025-35973 (INTEL-SA-01428); the release also carries INTEL-SA-01379, -01404, -01423, -01435, -01441, -01442 and -01443. 20260812 withdraws the 06-aa-04 revision 0x2a that 20260811 shipped, so MTL C0 (cpuid:A06A4) gets 0x28: - Addition of cpuid:806F8/0x10 microcode at revision 0x2c000435; - Addition of cpuid:806F8/0x87 microcode at revision 0x2b000685; - Addition of cpuid:90672/0x07 microcode at revision 0x3e; - Addition of cpuid:906A3/0x80 microcode at revision 0x43b; - Addition of cpuid:B0671/0x36 microcode at revision 0x137; - Addition of cpuid:B0674/0x36 microcode at revision 0x137; - Addition of cpuid:B06A2/0xe0 microcode at revision 0x6134; - Addition of cpuid:C0662/0x82 microcode at revision 0x122; - Addition of cpuid:C06C1/0x94 microcode at revision 0x11c; - Addition of cpuid:C06C2/0x94 microcode at revision 0x11c; - Addition of cpuid:C06C3/0x94 microcode at revision 0x11c; - Addition of cpuid:C06F2/0x87 microcode at revision 0x210002f4; - Addition of cpuid:D0650/0xc0 microcode at revision 0xc; - Addition of cpuid:D0651/0xc0 microcode at revision 0xc; - Addition of cpuid:D0670/0x36 microcode at revision 0x137; - Addition of cpuid:E0652/0x94 microcode at revision 0x11c; - Removal of cpuid:806F8/0x10 microcode at revision 0x2c000410; - Removal of cpuid:806F8/0x87 microcode at revision 0x2b000650; - Removal of cpuid:90672/0x07 microcode at revision 0x3d; - Removal of cpuid:906A3/0x80 microcode at revision 0x",
    "evidence": "osv:CLSA-2026-1789116898",
    "products": [
      {
        "name": {
          "value": "microcode_ctl",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4:20260812-1.el8.tuxcare.els1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CLSA-2026-1789116898",
      "aliases": [
        "CLSA-2026-1789116898"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "4:20260812-1.el8.tuxcare.els1"
                }
              ]
            }
          ],
          "package": {
            "name": "microcode_ctl",
            "purl": "pkg:rpm/tuxcare/microcode_ctl?distro=centos-8.4",
            "ecosystem": "TuxCare:CentOS:8.4"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.4els/CLSA-2026-1789116898.json"
          }
        }
      ],
      "modified": "2026-10-26T09:31:50.415819967Z",
      "provider": "osv",
      "upstream": [
        "CVE-2025-35973"
      ],
      "references": [
        "https://errata.tuxcare.com/els_os/centos8.4els/CLSA-2026-1789116898.html",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-35973"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2025-35973",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 448643,
  "published_at": "2026-09-11T08:55:09+00:00"
}