CVE-2009-3129 Microsoft Excel Featheader Record Memory Corruption
Remote attackers can execute arbitrary code by tricking users into opening a malicious Excel spreadsheet with a malformed FEATHEADER record.
- Exploited in the wild
- Since 3 Mar 2022
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2009-3129?
CVE-2009-3129 is a high-severity memory corruption vulnerability in Microsoft Excel, published on 11 Nov 2009. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official 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."
Weakness: CWE-787
Which versions are affected by CVE-2009-3129?
It affects 4 products.
Products include Microsoft Excel, Microsoft Excel Viewer, Microsoft Office, Microsoft Open Xml File Format Converter.
How do I fix CVE-2009-3129?
No fix has been published for CVE-2009-3129 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 24 Mar 2022.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2009-3129 being exploited?
Yes. Attackers have exploited CVE-2009-3129 in the wild since at least 3 Mar 2022.
Public exploit code: 1 Metasploit module and 2 Exploit-DB entries.
Other vulnerabilities in Microsoft Excel
Sources
Also known as GHSA-8325-hmcc-g9mq.