CVE-2009-0238 — Actively Exploited: Office (Microsoft)
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.
| CVE ID | CVE-2009-0238 |
|---|---|
| Vendor | Microsoft |
| Product | Office |
| Vulnerability name | Microsoft Office Remote Code Execution |
| Date added | 2026-04-14 |
| Remediation due | 2026-04-28 |
| Known ransomware use | Unknown |
| 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. |
| 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. |
| Source | CISA Known Exploited Vulnerabilities |
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