All vulnerabilities
CVE-2009-0238

Microsoft Office Remote Code Execution

Microsoft OfficeApplications & CMS
Open in ThreatlineRecord JSON
CVSS
8.8High
ExploitationExploited in the wildAdded to KEV 14 Apr 2026CISA KEV
Exploit odds (EPSS)42.9%Chance of exploitation activity in the next 30 days, higher than 98% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Federal deadline28 Apr 2026Remediation due date for US federal agenciesCISA KEV
CISA required actionApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. CISA KEV

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Timeline

  1. 25 Feb 2009, 16:00 UTCPublishedCVE List
  2. 14 Apr 2026Added to CISA KEVCISA KEV

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.

Text from CVE List

Affected versions 1

  • n/aaffected: n/aCVE List

References 6