{
  "id": "CVE-2009-0238",
  "url": "https://spydr.io/cve/CVE-2009-0238",
  "published": "2009-02-25T16:30:00.343Z",
  "modified": "2026-06-16T23:04:33.880Z",
  "score": 8.8,
  "severity": "high",
  "cvss_version": "3.1",
  "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
  "score_source": "CISA ADP",
  "epss": 0.43212,
  "epss_percentile": 0.9869,
  "exploited": true,
  "kev": {
    "added": "2026-04-14",
    "due": "2026-04-28",
    "action": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.",
    "ransomware": "Unknown",
    "name": "Microsoft Office Remote Code Execution",
    "notes": "https://learn.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-009 ; https://nvd.nist.gov/vuln/detail/CVE-2009-0238"
  },
  "ssvc_exploitation": "active",
  "vendors": [
    "microsoft"
  ],
  "products": [
    "microsoft excel",
    "microsoft excel viewer",
    "microsoft office",
    "microsoft office compatibility pack",
    "microsoft office excel viewer"
  ],
  "cwes": [
    "CWE-94"
  ],
  "description": "Microsoft Office Excel 2000 SP3, 2002 SP3, 2003 SP3, and 2007 SP1; Excel Viewer 2003 Gold and SP3; Excel Viewer; Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP1; and Excel in Microsoft Office 2004 and 2008 for Mac allow remote attackers to execute arbitrary code via a crafted Excel document that triggers an access attempt on an invalid object, as exploited in the wild in February 2009 by Trojan.Mdropper.AC.",
  "status": "Analyzed",
  "score_type": "Secondary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 8.8,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "http://blogs.zdnet.com/security/?p=2658",
      "tags": [
        "Broken Link"
      ]
    },
    {
      "url": "http://isc.sans.org/diary.html?storyid=5923",
      "tags": [
        "Press/Media Coverage"
      ]
    },
    {
      "url": "http://securitytracker.com/id?1021744",
      "tags": [
        "Broken Link"
      ]
    },
    {
      "url": "http://www.microsoft.com/technet/security/advisory/968272.mspx",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://www.securityfocus.com/bid/33870",
      "tags": [
        "Broken Link"
      ]
    },
    {
      "url": "http://www.symantec.com/business/security_response/writeup.jsp?docid=2009-022310-4202-99",
      "tags": [
        "Broken Link"
      ]
    },
    {
      "url": "http://www.us-cert.gov/cas/techalerts/TA09-104A.html",
      "tags": [
        "US Government Resource"
      ]
    },
    {
      "url": "http://www.vupen.com/english/advisories/2009/1023",
      "tags": [
        "Broken Link"
      ]
    },
    {
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-009",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/48875",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5968",
      "tags": [
        "Broken Link"
      ]
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2009-0238",
      "tags": [
        "US Government Resource"
      ]
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2009-0238",
  "covered_in": [],
  "attribution": [
    {
      "source": "NVD",
      "url": "https://nvd.nist.gov",
      "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD."
    },
    {
      "source": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "notice": "Known exploited vulnerabilities from the CISA KEV catalog."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss",
      "notice": "Exploit prediction scores from FIRST EPSS."
    }
  ]
}