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CVE-2008-3477

40
FAUCET Score

CVE-2008-3477 is a critical vulnerability affecting Microsoft Excel 2000, 2002, and 2003, where improper validation of data in the VBA Performance Cache allows remote code execution. Attackers can exploit this by crafting malicious Excel files containing embedded objects, leading to heap-based buffer overflows, integer overflows, and memory corruption. With a CVSS score of 9.3 and a FAUCET Risk Score of 98/100, this vulnerability is highly severe, requiring no authentication and having a medium attack complexity, but resulting in complete compromise of confidentiality, integrity, and availability. Despite its high severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
5.01CPE matchmatch criteria
cpe:2.3:a:microsoft:internet_explorer:5.01:sp4:*:*:*:*:*:*
6CPE matchmatch criteria
cpe:2.3:a:microsoft:internet_explorer:6:*:*:*:*:*:*:*
6CPE matchmatch criteria
cpe:2.3:a:microsoft:internet_explorer:6:sp1:*:*:*:*:*:*
7CPE matchmatch criteria
cpe:2.3:a:microsoft:internet_explorer:7:*:*:*:*:*:*:*

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
35.69%
Probability of exploitation in next 30 days
EPSS Percentile
98.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.3569 is in the 96th percentile among its peer group of 8,920 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

labs.idefense.com / intelligence/vulnerabilities/display.php
marc.info
docs.microsoft.com / en-us/security-updates/securitybulletins/2008/ms08-057
secunia.com / advisories/32211
PatchVendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/45566
exchange.xforce.ibmcloud.com / vulnerabilities/45581
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5870
securityfocus.com / bid/31702
Patch
securitytracker.com / id
us-cert.gov / cas/techalerts/TA08-288A.html
US Government Resource
vupen.com / english/advisories/2008/2808