CVE-2009-0238

Known Exploited Vulnerability Entry External Catalog

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Entry Details

CVE-2009-0238

Confirmed

Yes

2026-04-14 00:00 UTC

Timestamps

2026-04-14

2026-04-14

Scope

KEV entry: Microsoft Office Remote Code Execution | Affected: Microsoft / Office | Description: Microsoft Office Excel contains a remote code execution vulnerability that could allow an attacker to take complete control of an affected system if a user opens a specially crafted Excel file that includes a malformed object. | Required 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. | Due date: 2026-04-28 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://learn.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-009 ; https://nvd.nist.gov/vuln/detail/CVE-2009-0238

References
  • {'id': 'CVE-2009-0238', 'url': 'https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2009-0238'}

defc1339-959e-42cc-98bb-9e2a5e3e11b5

405284c2-e461-4670-8979-7fd2c9755a60

2026-04-14 18:00 UTC

2026-04-14 18:00 UTC

Evidence (1)
Type Source Signal Confidence Details GCVE Metadata
vendor_report cisa-kev successful_exploitation 0.80
View details 
{
  "cwes": [
    "CWE-94"
  ],
  "date_added": "2026-04-14",
  "due_date": "2026-04-28",
  "feed": "CISA Known Exploited Vulnerabilities Catalog",
  "knownRansomwareCampaignUse": "Unknown",
  "product": "Office",
  "vendorProject": "Microsoft",
  "vulnerabilityName": "Microsoft Office Remote Code Execution"
}
 -
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