CVE-2009-0557
Last modified
CVE-2009-0557 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Excel in Microsoft Office 2000 SP3, Office XP SP3, Office 2003 SP3, and Office 2004 and 2008 for Mac; Excel in 2007 Microsoft Office System SP1 and SP2; Open XML File Format Converter for Mac; Microsoft Office Excel Viewer 2003 SP3; Microsoft Office Excel Viewer; and Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP1 and SP2 allow remote attackers to execute arbitrary code via a crafted Excel file with a malformed record object, aka "Object Record Corruption Vulnerability.". CISA has confirmed active exploitation in the wild. EPSS estimates a 58.55% chance of exploitation in the next 30 days.
Description
Excel in Microsoft Office 2000 SP3, Office XP SP3, Office 2003 SP3, and Office 2004 and 2008 for Mac; Excel in 2007 Microsoft Office System SP1 and SP2; Open XML File Format Converter for Mac; Microsoft Office Excel Viewer 2003 SP3; Microsoft Office Excel Viewer; and Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP1 and SP2 allow remote attackers to execute arbitrary code via a crafted Excel file with a malformed record object, aka "Object Record Corruption Vulnerability."
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploitation Status
This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by .
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Microsoft | Office | 2000 | Sp3 |
| Microsoft | Office | 2003 | Sp3 |
| Microsoft | Office | 2004 | — |
| Microsoft | Office | 2007 | Sp1 |
| Microsoft | Office | 2008 | — |
| Microsoft | Office | xp | Sp3 |
| Microsoft | Office Compatibility Pack | 2007 | Sp1 |
| Microsoft | Office Excel Viewer | All versions | — |
| Microsoft | Office Excel Viewer | 2003 | Sp3 |
| Microsoft | Office Sharepoint Server | 2007 | Sp1 |
| Microsoft | Open Xml File Format Converter | All versions | — |
References
- http://osvdb.org/54953Broken Link
- http://www.securityfocus.com/bid/35241Broken Link, Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id?1022351Broken Link, Third Party Advisory, VDB Entry
- http://www.us-cert.gov/cas/techalerts/TA09-160A.htmlBroken Link, Third Party Advisory, US Government Resource
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-021Patch, Vendor Advisory
- http://osvdb.org/54953Broken Link
- http://www.securityfocus.com/bid/35241Broken Link, Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id?1022351Broken Link, Third Party Advisory, VDB Entry
- http://www.us-cert.gov/cas/techalerts/TA09-160A.htmlBroken Link, Third Party Advisory, US Government Resource
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-021Patch, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2009-0557US Government Resource
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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