microsoft office CVE-2009-0557 vulnerability in Microsoft Products
Published on June 10, 2009

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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."

Vendor Advisory NVD

Known Exploited Vulnerability

This Microsoft Office Object Record Corruption Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Microsoft Office contains an object record corruption vulnerability which allows remote attackers to execute code via a crafted Excel file with a malformed record object.

The following remediation steps are recommended / required by June 22, 2022: Apply updates per vendor instructions.

Vulnerability Analysis

CVE-2009-0557 can be exploited with local system access, requires user interaction. This vulnerability is considered to have a low attack complexity. This vulnerability is known to be actively exploited by threat actors. The potential impact of an exploit of this vulnerability is considered to be very high.

Attack Vector:
LOCAL
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH

Weakness Type

What is a Code Injection Vulnerability?

The software constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

CVE-2009-0557 has been classified to as a Code Injection vulnerability or weakness.


Products Associated with CVE-2009-0557

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Microsoft Office
 
Microsoft Office Sharepoint Server
 
Microsoft Office Excel Viewer
 
Microsoft Office Compatibility Pack
 
Microsoft Open Xml File Format Converter
 

Exploit Probability

EPSS
86.37%
Percentile
99.40%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.