CVE-2009-0549

Office vulnerability

CVSS

9.3

EPSS

28.4%

EPSS pct

98th

Exploited

No known

Excel in Microsoft Office 2000 SP3, Office XP SP3, Office 2003 SP3, and Office 2004 and 2008 for Mac; Open XML File Format Converter for Mac; and Microsoft Office Excel Viewer 2003 SP3 allow remote attackers to execute arbitrary code via a crafted Excel file with a malformed record object, aka "Record Pointer Corruption Vulnerability."

Affected vendor

Microsoft

Affected product

Office

CVSS vector

AV:N/AC:M/Au:N/C:C/I:C/A:C

Weakness type (CWE)

CWE-94 — Code Injection

Published

2009-06-10

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, medium attack complexity, requiring no authentication. Successful exploitation leads to complete impact to confidentiality, complete impact to integrity, complete impact to availability.

Its EPSS score of 28.4% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 98% of all scored CVEs.

Check your external exposure to CVE-2009-0549

Confirm whether Microsoft Office is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2009-0549.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2009-0549

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2009-0549 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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