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CVE-2009-3134

38
FAUCET Score

CVE-2009-3134 is a critical vulnerability affecting multiple versions of Microsoft Office Excel, Excel Viewer, and related compatibility packs, allowing remote attackers to execute arbitrary code. This "Excel Field Sanitization Vulnerability" stems from improper parsing of Excel file formats when processing malformed record objects. With a CVSS score of 9.3, it presents a high-severity risk (AV:N/AC:M/Au:N/C:C/I:C/A:C), indicating it can be exploited remotely with moderate complexity to achieve complete compromise of confidentiality, integrity, and availability. Despite its high risk score (FAUCET 98/100) and high EPSS percentile (0.57317), there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
2007CPE matchmatch criteria
cpe:2.3:a:microsoft:compatibility_pack_word_excel_powerpoint:2007:sp1:*:*:*:*:*:*
2007CPE matchmatch criteria
cpe:2.3:a:microsoft:compatibility_pack_word_excel_powerpoint:2007:sp2:*:*:*:*:*:*
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:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.3HIGH

AV:N/AC:M/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
25.78%
Probability of exploitation in next 30 days
EPSS Percentile
97.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.2578 is in the 91st percentile among its peer group of 8,920 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

docs.microsoft.com / en-us/security-updates/securitybulletins/2009/ms09-067
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5878
securitytracker.com / id
us-cert.gov / cas/techalerts/TA09-314A.html
US Government Resource