CVE-2010-0258
HighMicrosoft 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…
Published Mar 10, 2010 · Updated Apr 28, 2026
Key Facts
Patch immediately- CVE-2010-0258 is a high-severity vulnerability (CVSS 7.8 v3.1) affecting Excel (Microsoft), Office (Microsoft), Office Compatibility Pack (Microsoft) and 3 more products.
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 61% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3.1
7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
61%
Higher than 99.1% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
None known
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Description
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."
Affected Products
13 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| ExcelMicrosoft | 2002-sp3, 2003-sp3, 2007-sp1, 2007-sp2 | n/a |
| OfficeMicrosoft | 2004, 2008 | n/a |
| Office Compatibility PackMicrosoft | 2007-sp1, 2007-sp2 | n/a |
| Office Excel ViewerMicrosoft | See advisory | n/a |
| Office Sharepoint ServerMicrosoft | 2007-sp1, 2007-sp2 | n/a |
Timeline
Publicly disclosed
Mar 10, 2010
Last updated
Apr 28, 2026
Weakness Type
- CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')
References
- advisory1023698
- advisoryTA10-068A
- patchMS10-017
- other20100309 Microsoft Excel Sheet Object Type Confusion Vulnerability
- otheroval:org.mitre.oval:def:8545
FAQ
Common Questions.
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 r…
Affected: Excel (Microsoft) versions 2002-sp3, 2003-sp3, 2007-sp1, 2007-sp2; Office (Microsoft) versions 2004, 2008; Office Compatibility Pack (Microsoft) versions 2007-sp1, 2007-sp2, among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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