{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally."
    }
  ],
  "id": "CVE-2026-45472",
  "lastModified": "2026-06-09T19:32:51.440",
  "metrics": {
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      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 8.4,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
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        "exploitabilityScore": 2.5,
        "impactScore": 5.9,
        "source": "secure@microsoft.com",
        "type": "Primary"
      }
    ]
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  "published": "2026-06-09T17:17:21.740",
  "references": [
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      "source": "secure@microsoft.com",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45472"
    }
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  "sourceIdentifier": "secure@microsoft.com",
  "vulnStatus": "Undergoing Analysis",
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      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
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      "source": "secure@microsoft.com",
      "type": "Primary"
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}

{
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  "aliases": [
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    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-09T17:17:21Z",
    "severity": "HIGH"
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  "details": "Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.",
  "id": "GHSA-7rc8-chgg-9grf",
  "modified": "2026-06-09T18:30:49Z",
  "published": "2026-06-09T18:30:49Z",
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      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45472"
    },
    {
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      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45472"
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      "type": "CVSS_V3"
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    "distribution": {
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        "text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
        "title": "Disclaimer"
      },
      {
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        "text": "Required. The vulnerability documented by this CVE requires customer action to resolve.",
        "title": "Customer Action"
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          "title": "Assigning CNA"
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          "title": "Are the updates for the Microsoft Office LTSC and Microsoft 365 for Mac currently available?"
        },
        {
          "category": "faq",
          "text": "The word Remote in the title refers to the location of the attacker. This type of exploit is sometimes referred to as Arbitrary Code Execution (ACE). The attack itself is carried out locally. This means an attacker or victim needs to execute code from the local machine to exploit the vulnerability.",
          "title": "According to the CVSS metric, the attack vector is local (AV:L). Why does the CVE title indicate that this is a remote code execution?"
        },
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          "category": "faq",
          "text": "The security update for Microsoft Office for Android is not immediately available. The update will be released as soon as possible. When it is available, customers will be notified via a revision to this CVE information.",
          "title": "Are the updates for the Microsoft Office for Android currently available?"
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            "reportConfidence": "CONFIRMED",
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      "title": "Microsoft Office Remote Code Execution Vulnerability"
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}