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CVE-2009-3129

97
FAUCET Score

CVE-2009-3129 is a memory corruption vulnerability in Microsoft Excel and related products, including Office for Mac and Excel Viewer. It allows remote attackers to execute arbitrary code by crafting a malicious spreadsheet with an invalid FEATHEADER record. This vulnerability has a CVSS score of 7.8 (High) due to its potential for complete compromise of confidentiality, integrity, and availability, requiring user interaction (opening a malicious file) but with low attack complexity. It is actively exploited in the wild, with publicly available Metasploit modules and multiple mentions in community discussions and media coverage, including its use in sophisticated campaigns like "Red October."

Impacted Technologies

VendorProductVersion(s)CPE
2002CPE matchmatch criteria
cpe:2.3:a:microsoft:excel:2002:sp3:*:*:*:*:*:*
2003CPE matchmatch criteria
cpe:2.3:a:microsoft:excel:2003:sp3:*:*:*:*:*:*
2007CPE matchmatch criteria
cpe:2.3:a:microsoft:excel:2007:sp1:*:*:*:*:*:*
2007CPE matchmatch criteria
cpe:2.3:a:microsoft:excel:2007:sp2:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:microsoft:excel_viewer:-:sp1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
85.73%
Probability of exploitation in next 30 days
EPSS Percentile
99.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
Added to KEV · Mar 3, 2022
Metasploit: MS09-067 Microsoft Excel Malformed FEATHEADER Record Vulnerability · Nov 10, 2009
ExploitDB: EDB-16625 · Sep 25, 2010
This CVE's current EPSS score of 0.8573 is in the 100th percentile among its peer group of 11,616 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
archives.neohapsis.com / archives/bugtraq/2009-11/0080.html
Broken Link
labs.idefense.com / intelligence/vulnerabilities/display.php
Broken Link
osvdb.org / 59860
Broken Link
docs.microsoft.com / en-us/security-updates/securitybulletins/2009/ms09-067
PatchVendor Advisory
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6521
Broken Link
exploit-db.com / exploits/14706
ExploitThird Party AdvisoryVDB Entry
securityfocus.com / bid/36945
Broken LinkThird Party AdvisoryVDB Entry
securitytracker.com / id
Broken LinkThird Party AdvisoryVDB Entry
us-cert.gov / cas/techalerts/TA09-314A.html
Third Party AdvisoryUS Government Resource
zerodayinitiative.com / advisories/ZDI-09-083
Third Party AdvisoryVDB Entry