CVE-2008-3477

Severity: critical (CVSS 9.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 35.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2008-10-15 · updated 2026-06-16
Weakness: CWE-399

Description

Microsoft Excel 2000 SP3, 2002 SP3, and 2003 SP2 and SP3 does not properly validate data in the VBA Performance Cache when processing an Office document with an embedded object, which allows remote attackers to execute arbitrary code via an Excel file containing a crafted value, leading to heap-based buffer overflows, integer overflows, array index errors, and memory corruption, aka "Calendar Object Validation Vulnerability."

Affected products

Microsoft Internet Explorer 11: 5.01-sp4, 6, 6-sp1, 7

References

http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=746
http://marc.info/?l=bugtraq&m=122479227205998&w=2
http://secunia.com/advisories/32211
http://www.securityfocus.com/bid/31702
http://www.securitytracker.com/id?1021044
http://www.us-cert.gov/cas/techalerts/TA08-288A.html
http://www.vupen.com/english/advisories/2008/2808
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2008/ms08-057
https://exchange.xforce.ibmcloud.com/vulnerabilities/45566
https://exchange.xforce.ibmcloud.com/vulnerabilities/45581
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5870
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=746

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