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Windows MIDI Service Module Elevation of Privileges Vulnerability

Type: advisorySources: Official CVE List

Heap-based buffer overflow in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.

Products
Windows 11 Version 24H2, Windows 11 Version 25H2, Windows 11 version 26H1
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-62688
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 01:57 UTC · Revision 2

Source evidence

Windows MIDI Service Module Elevation of Privileges Vulnerability

core-cve · Original source

Published 11 Aug 2026, 17:04 UTC

Heap-based buffer overflow in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.

cve:CVE-2026-62688

Windows 11 Version 24H2

Fixed versions: Not specified

Windows 11 Version 25H2

Fixed versions: Not specified

Windows 11 version 26H1

Fixed versions: Not specified

Complete source record
{
  "id": "412d2535d762154af46aa3291c561448ae42a122f2c451a04d2b393ba16339e7",
  "url": "https://www.cve.org/CVERecord?id=CVE-2026-62688",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Windows MIDI Service Module Elevation of Privileges Vulnerability",
    "summary": "Heap-based buffer overflow in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.",
    "evidence": "cve:CVE-2026-62688",
    "products": [
      {
        "name": {
          "value": "Windows 11 Version 24H2",
          "evidence": "/containers/cna/affected/0/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      },
      {
        "name": {
          "value": "Windows 11 Version 25H2",
          "evidence": "/containers/cna/affected/1/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      },
      {
        "name": {
          "value": "Windows 11 version 26H1",
          "evidence": "/containers/cna/affected/2/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-62688",
      "aliases": [
        "CVE-2026-62688"
      ],
      "metrics": [
        {
          "format": "CVSS",
          "cvssV3_1": {
            "version": "3.1",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C"
          },
          "scenarios": [
            {
              "lang": "en-US",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "affected": [
        {
          "vendor": "Microsoft",
          "product": "Windows 11 Version 24H2",
          "versions": [
            {
              "status": "affected",
              "version": "10.0.26100.0",
              "lessThan": "10.0.26100.9168",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "ARM64-based Systems",
            "x64-based Systems"
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Windows 11 Version 25H2",
          "versions": [
            {
              "status": "affected",
              "version": "10.0.26200.0",
              "lessThan": "10.0.26200.9168",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "ARM64-based Systems",
            "x64-based Systems"
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Windows 11 version 26H1",
          "versions": [
            {
              "status": "affected",
              "version": "10.0.28000.0",
              "lessThan": "10.0.28000.2704",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "ARM64-based Systems",
            "x64-based Systems"
          ]
        }
      ],
      "modified": "2026-10-26T22:49:57.613Z",
      "provider": "cve",
      "references": [
        "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62688"
      ],
      "provider_metadata": {
        "adp": [
          {
            "title": "CISA ADP Vulnrichment",
            "metrics": [
              {
                "other": {
                  "type": "ssvc",
                  "content": {
                    "id": "CVE-2026-62688",
                    "role": "CISA Coordinator",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "version": "2.0.3",
                    "timestamp": "2026-08-06T00:00:00+00:00"
                  }
                }
              }
            ],
            "providerMetadata": {
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP",
              "dateUpdated": "2026-08-12T03:56:52.032Z"
            }
          }
        ],
        "cna": {
          "orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
          "shortName": "microsoft",
          "dateUpdated": "2026-10-26T22:49:57.613Z"
        }
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-62688",
        "evidence": "/cveMetadata/cveId"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/containers/cna/metrics"
  },
  "source_id": "core-cve",
  "document_id": 357745,
  "published_at": "2026-08-11T17:04:02.863+00:00"
}