THREATPORT/VULNERABILITY/CVE-2007-0028
HIGH SEVERITY

CVE-2007-0028

Excel vulnerability

CVSS
9.3
EPSS
33.0%
EPSS pct
98th
Exploited
No known
Microsoft Excel 2000, 2002, 2003, Viewer 2003, Office 2004 for Mac, and Office v.X for Mac does not properly handle certain opcodes, which allows user-assisted remote attackers to execute arbitrary code via a crafted XLS file, which results in an "Improper Memory Access Vulnerability." NOTE: an early disclosure of this issue used CVE-2006-3432, but only CVE-2007-0028 should be used.
Affected vendor
Microsoft
Affected product
Excel
CVSS vector
AV:N/AC:M/Au:N/C:C/I:C/A:C
Weakness type (CWE)
  • CWE-20 — Improper Input Validation
Published
2007-01-09

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 33.0% 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-2007-0028

  • Confirm whether Microsoft Excel is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2007-0028.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2007-0028

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2007-0028 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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