CVE-2009-3129
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;…
- 7.8HighCVSS base score
- 84.0%Exploitation in 30 daysEPSS · top 0.3% of all CVEs
- YesKnown exploitedin CISA's KEV since 3 Mar 2022
- 3Public exploitsMetasploit, Nuclei and Exploit-DB
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."
Exploited in the wild
CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Microsoft Excel Featheader Record Memory Corruption Vulnerability.
- Added
- 3 Mar 2022
- Fix due (US federal)
- 24 Mar 2022
- Used by ransomware
- Not known
Apply updates per vendor instructions.
ENISA's EU Vulnerability Database lists it as exploited, from CISA's KEV, since 3 Mar 2022.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list a Metasploit module and 2 Exploit-DB entries for it. A reference of the record is tagged as an exploit. CISA's SSVC rates its exploitation: it is being exploited.
Show the exploits4
Metasploit modules1 module
- MS09-067 Microsoft Excel Malformed FEATHEADER Record Vulnerability (Metasploit module) (opens in a new tab)
exploit/windows/fileformat/ms09_067_excel_featheaderRank gooddisclosed 10 Nov 2009
Exploit-DB2 entries
- Microsoft Excel - Malformed FEATHEADER Record (MS09-067) (Metasploit) (Exploit-DB entry) (opens in a new tab)
EDB-ID 16625local, windowspublished 25 Sept 2010Verified
- Microsoft Excel - FEATHEADER Record (MS09-067) (Exploit-DB entry) (opens in a new tab)
EDB-ID 14706local, windowspublished 21 Aug 2010Not verified
References tagged exploit1 reference
- 14706 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By microsoft
- 2 months later
· 2 months later
Published
- 12 years later
· 12 years later
Added to CISA KEV
Known exploited in the wild
- 4 years later
· 4 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVDNVD · Analyzed | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 84.0% · top 0.3% of all CVEs (10 Nov 2026)
- CISA SSVC
- Exploitation: active · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
n/a
- affected n/a
References
11
- 59860 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- oval:org.mitre.oval:def:6521 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 1023157 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 36945 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- TA09-314A (opens in a new tab)third-party-advisoryx_refsource_CERTx_transferred
- 20091110 Microsoft Excel FEATHEADER Record Memory Corruption Vulnerability (opens in a new tab)third-party-advisoryx_refsource_IDEFENSEx_transferred
- MS09-067 (opens in a new tab)vendor-advisoryx_refsource_MSx_transferred
- 20091110 ZDI-09-083: Microsoft Excel Shared Feature Header Pointer Offset Memory Corruption Vulnerability (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- http://www.zerodayinitiative.com/advisories/ZDI-09-083 (opens in a new tab)x_refsource_MISCx_transferred
- 14706 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2009-3129 (opens in a new tab)government-resource
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- CISA KEV catalog (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2009-3112 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2009-3129)Record last updated .