CVE-2009-3129
Microsoft Excel Featheader Record Memory Corruption Vulnerability
Microsoft ExcelApplications & CMS
CVSS
7.8HighExploit odds (EPSS)84.0%Chance of exploitation activity in the next 30 days, higher than 99% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
CISA required actionApply updates per vendor instructions. 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
- 10 Nov 2009Exploit code publicMetasploit
- 11 Nov 2009, 19:00 UTCPublishedCVE List
- 3 Mar 2022Added to CISA KEVCISA KEV
Public exploit code and templates 3
- Exploit moduleMS09-067 Microsoft Excel Malformed FEATHEADER Record Vulnerability 10 Nov 2009Metasploit
- Local exploitMicrosoft Excel - FEATHEADER Record (MS09-067) 21 Aug 2010Exploit-DB
- Local exploitMicrosoft Excel - Malformed FEATHEADER Record (MS09-067) (Metasploit) 25 Sep 2010Exploit-DB
Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.
Description
Microsoft Office Excel allows remote attackers to execute arbitrary code via a spreadsheet with a FEATHEADER record containing an invalid cbHdrData size element that affects a pointer offset.
Text from CVE List
Affected versions 1
- n/aaffected: n/aCVE List
References 4
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6521Advisoryvia CVE List
- docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-067Advisoryvia CVE List
- nvd.nist.gov/vuln/detail/CVE-2009-3129Referencevia CISA KEV
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2009-3129Referencevia CVE List