Is CVE-2010-0258 being actively exploited?

CVE-2010-0258 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2010-0258?

CVE-2010-0258 has a CVSS 3.1 base score of 7.8 (HIGH).

CVE-2010-0258

HIGH · CVSS 7.8EPSS 61.0%EU EUVD

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 SP1 and SP2; and Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP1 and SP2 do not properly parse the Excel file format, which allows remote attackers to execute arbitrary code via a crafted spreadsheet that causes memory to be interpreted as a different object type than intended, aka "Microsoft Office Excel Sheet Object Type Confusion Vulnerability."

Key facts

CVSS score: 7.8 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-843
EPSS score: 61.0% (99th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2010-0289)
Published: March 10, 2010
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2010-0289 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

microsoft / excel
microsoft / excel
microsoft / excel
microsoft / excel
microsoft / office
microsoft / office
microsoft / office compatibility pack
microsoft / office compatibility pack
microsoft / office excel viewer
microsoft / office excel viewer
microsoft / office sharepoint server
microsoft / office sharepoint server
microsoft / open xml file format converter

References

http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=859(Broken Link)
http://www.securitytracker.com/id?1023698(Broken Link, Third Party Advisory, VDB Entry)
http://www.us-cert.gov/cas/techalerts/TA10-068A.html(Third Party Advisory, US Government Resource)
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-017(Patch, Vendor Advisory)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8545(Broken Link)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

Query CVEs from your AI assistant

The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.

Add the CVE brain