CVEvulnerability

CVE-2009-3129

7.8 HIGH Known exploited Published 2009-11-11 Modified 2026-06-16 Official page ↗

CISA Known Exploited Vulnerability

Microsoft Excel Featheader Record Memory Corruption Vulnerability — Microsoft Excel

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.

Added to KEV
2022-03-03
Remediation due
2022-03-24
Ransomware use
Unknown
Required action
Apply updates per vendor instructions.
Notes
https://nvd.nist.gov/vuln/detail/CVE-2009-3129
Status
Analyzed
Published
2009-11-11
Last modified
2026-06-16
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
9.3 HIGH — AV:N/AC:M/Au:N/C:C/I:C/A:C
Weaknesses
CWE-787

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."

Affected configurations

• microsoft excel 2002 • microsoft excel 2003 • microsoft excel 2007 • microsoft excel viewer • microsoft excel viewer 2003 • microsoft office 2004 • microsoft office 2008 • microsoft open xml file format converter

Related

Weakness · CWE (1)

  • CWE-787 Out-of-bounds Write weakness

Referenced by CWE · observed example (1)

  • CWE-823 Use of Out-of-range Pointer Offset weakness

References