CVE-2009-3129
Last modified
CVE-2009-3129 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Microsoft Office Excel 2002 SP3, 2003 SP3, and 2007 SP1 and SP2; Office 2004 and 2008 for Mac; Open XML File Format Converter for Mac; Office Excel Viewer 2003 SP3; Office Excel Viewer SP1 and SP2; and Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP1 and SP2 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, aka "Excel Featheader Record Memory Corruption Vulnerability.". CISA has confirmed active exploitation in the wild. EPSS estimates a 85.73% chance of exploitation in the next 30 days.
Description
Microsoft Office Excel 2002 SP3, 2003 SP3, and 2007 SP1 and SP2; Office 2004 and 2008 for Mac; Open XML File Format Converter for Mac; Office Excel Viewer 2003 SP3; Office Excel Viewer SP1 and SP2; and Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP1 and SP2 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, aka "Excel Featheader Record Memory Corruption Vulnerability."
Metrics
Exploitation Status
This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by .
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Microsoft | Excel | 2002 | Sp3 |
| Microsoft | Excel | 2003 | Sp3 |
| Microsoft | Excel | 2007 | Sp1 |
| Microsoft | Excel Viewer | All versions | Sp1 |
| Microsoft | Excel Viewer | 2003 | Sp3 |
| Microsoft | Office | 2004 | — |
| Microsoft | Office | 2008 | — |
| Microsoft | Open Xml File Format Converter | All versions | — |
References
- https://osvdb.org/59860Broken Link
- https://www.exploit-db.com/exploits/14706Exploit, Third Party Advisory, VDB Entry
- https://www.securityfocus.com/bid/36945Broken Link, Third Party Advisory, VDB Entry
- https://www.securitytracker.com/id?1023157Broken Link, Third Party Advisory, VDB Entry
- https://www.us-cert.gov/cas/techalerts/TA09-314A.htmlThird Party Advisory, US Government Resource
- https://www.zerodayinitiative.com/advisories/ZDI-09-083Third Party Advisory, VDB Entry
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-067Patch, Vendor Advisory
- https://osvdb.org/59860Broken Link
- https://www.exploit-db.com/exploits/14706Exploit, Third Party Advisory, VDB Entry
- https://www.securityfocus.com/bid/36945Broken Link, Third Party Advisory, VDB Entry
- https://www.securitytracker.com/id?1023157Broken Link, Third Party Advisory, VDB Entry
- https://www.us-cert.gov/cas/techalerts/TA09-314A.htmlThird Party Advisory, US Government Resource
- https://www.zerodayinitiative.com/advisories/ZDI-09-083Third Party Advisory, VDB Entry
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-067Patch, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2009-3129US Government Resource
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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