Microsoft Office Object Record Corruption Vulnerability

[ Why it matters ]Priority signals

• Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2022-06-08
• EPSS: 53% chance of exploitation in the next 30 days (higher than 99% of CVEs)

[ Description ]Official 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."

CISA: Microsoft Office contains an object record corruption vulnerability that allows remote attackers to execute code via a crafted Excel file with a malformed record object.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 22 Jun 2022): Apply updates per vendor instructions.

• Patch on docs.microsoft.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD

[ References ]References

• osvdb.org/54953Broken Link
• www.securityfocus.com/bid/35241Broken LinkThird Party AdvisoryVDB Entry
• www.securitytracker.com/idBroken LinkThird Party AdvisoryVDB Entry
• www.us-cert.gov/cas/techalerts/TA09-160A.htmlBroken LinkThird Party AdvisoryUS Government Resource
• www.vupen.com/english/advisories/2009/1540Broken Link
• docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-021PatchVendor Advisory
• oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5564Broken Link
• www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource