CVE-2007-3030

Excel vulnerability

CVSS

7.6

EPSS

25.0%

EPSS pct

98th

Exploited

No known

Microsoft Excel 2000 SP3, 2002 SP3, 2003 SP2, and 2003 Viewer allows user-assisted remote attackers to execute arbitrary code via a malformed Excel file involving the "denoting [of] the start of a Workspace designation", which results in memory corruption, aka the "Workbook Memory Corruption Vulnerability".

Affected vendor

Microsoft

Affected product

Excel

CVSS vector

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

Published

2007-07-10

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, high 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 25.0% 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-2007-3030

Confirm whether Microsoft Excel is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2007-3030.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2007-3030

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2007-3030 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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