CVE-2009-3129
Exploitation confirmed. First attested on 2022-03-03 by CISA-ADP, CISA KEV, GCVE · kevintel.
- Published2009-11-11
- WeaknessCWE-787
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
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."
Timeline
dates in UTCObserved activity
isMalicious corpus · updated 2026-10-23 18:48 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2009-3129?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2009-3129?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 2002.x | = 2002 | no fix published | NVD |
| 2003.x | = 2003 | no fix published | NVD |
| 2007.x | = 2007 | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| — | all versions | no fix published | NVD |
| 2003.x | = 2003 | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 2004.x | = 2004 | no fix published | NVD |
| 2008.x | = 2008 | no fix published | NVD |
1 more product in the sources.
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Fix
- CISA’s required action: Apply updates per vendor instructions.due 2022-03-24
Advisories and patches
- docs.microsoft.comPatch · Vendor Advisory
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
CISA Known Exploited Vulnerability
- Date Added
- 2022-03-03
- Patch Due Date
- 2022-03-24
- Ransomware Use
- Unknown
- Required Action
- Apply updates per vendor instructions.
Sources
- CISA KEVKEV entry2022-03-03
- GCVEexploitation2022-03-03
- CISA-ADPSSVC decisionactive2025-02-10
- OpenCVESSVC decisionactive—
- CISA-ADPCVSS 3.17.82025-02-10
- NVDCVSS 3.17.8read 2026-10-23
- NVDCVSS 2.09.3read 2026-10-23
- CISA-ADPweakness (CWE)CWE-7872025-02-10
- NVDweakness (CWE)CWE-787read 2026-10-23
- FIRST EPSSEPSS score84.0 %read 2026-10-23
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Published
- 2009-11-11
- Last Modified
- 2026-06-16
- NVD status
- Analyzed
Frequently asked questions
What is CVE-2009-3129?
Is CVE-2009-3129 actively exploited?
What is the CVSS score for CVE-2009-3129?
Hear about the next vulnerability in your software
Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».
No credit card required · No monthly cap on website lookups · 250 API requests/month
Go further
- For a threat intelligence platform: malware, C2 and ransomware indicators over STIX/TAXII.
- Following what attackers exploit right now? The CISA KEV additions of the month, with their patch deadlines.
- Running this software? Vulnerability monitoring alerts you to new vulnerabilities in your products.
Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.