CVE-2009-0557

Microsoft Office: Object Record Corruption

As of , CVE-2009-0557 in Microsoft Office is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch this week.

Exploited
Yes: CISA listed it on 8 June 2022
US federal deadline
22 June 202214 days after CISA listed it. US federal civilian agencies must fix it by then.
Used in ransomware campaigns
Not known to CISA
EPSS score
0.53Higher than 98% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
EPSS when listed
0.52 on 8 June 2022EPSS on the day CISA listed it.
Public exploit
None foundNeither Metasploit nor Exploit-DB lists one.
Fix
No vendor link in CISA's entry

What CISA says to do

Apply updates per vendor instructions.

CISA's required action

What the flaw is

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.

CISA's 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."

The CVE record's description, from microsoft

CVE published
10 June 2009
Assigned by
microsoft
CVSS
7.8 High (CVSS 3.1, from CISA-ADP)
CWE-94
Improper Control of Generation of Code ('Code Injection')
CISA SSVC, exploitation
active
CISA SSVC, automatable
no
CISA SSVC, technical impact
total

Timeline

  1. The CVE record was published.
  2. CISA added it to its list of exploited vulnerabilities.
  3. The US federal deadline to fix it.

Office: other exploited entries

VulnerabilityProductOur groupListedDeadlineEPSS
CVE-2010-3333Stack-based Buffer OverflowMicrosoft OfficePatch this weekMetasploit module; EPSS 0.89; verified Exploit-DB entry0.89
CVE-2016-3235OLE DLL Side LoadingMicrosoft OfficePatch this weekMetasploit module; verified Exploit-DB entry0.43
CVE-2017-11882Memory CorruptionMicrosoft OfficePatch this weekRansomware use; Metasploit module; EPSS 0.990.99
CVE-2026-21509Security Feature BypassMicrosoft OfficePatch this weekEPSS 0.710.71
CVE-2009-0556PowerPoint Code InjectionMicrosoft OfficePatch this weekEPSS 0.670.67
CVE-2023-23397Outlook Privilege EscalationMicrosoft OfficePatch this weekEPSS 0.970.97
CVE-2009-0563Buffer OverflowMicrosoft OfficePatch this weekEPSS 0.630.63
CVE-2013-1331Buffer OverflowMicrosoft OfficePatch this weekEPSS 0.800.80
CVE-2012-1856MSCOMCTL.OCX Remote Code ExecutionMicrosoft OfficePatch this weekEPSS 0.720.72
CVE-2015-2545Malformed EPS FileMicrosoft OfficePatch this weekEPSS 0.860.86

All 29 entries for Office

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