CVE-2007-1756

Microsoft Excel 2000 SP3, 2002 SP3, 2003 SP2, 2003 Viewer, and Office Excel 2007 does not properly validate version information, which allows user-assisted remote attackers to execute arbitrary code via a crafted Excel file, aka "Calculation Error Vulnerability".

Published: 2007-07-10 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2007-1756 is rated High Risk (71.8/100): CVSS Critical severity, with high exploitation likelihood (EPSS 32.05%, 98th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2007-1756

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-17 31.81% 32.05% +0.24%
2 2026-06-15 67.99% 31.81% -36.18%
3 2026-02-27 — 67.99% —

Full EPSS history (19 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2007-1756

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.3 2.0 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.6 10.0 [email protected]

Weakness enumeration for CVE-2007-1756

Affected software / configurations for CVE-2007-1756

Vendor Product Version Raw CPE
microsoft excel 2000 cpe:2.3:a:microsoft:excel:2000:sp3:*:*:*:*:*:*
microsoft excel 2002 cpe:2.3:a:microsoft:excel:2002:sp3:*:*:*:*:*:*
microsoft excel 2003 cpe:2.3:a:microsoft:excel:2003:sp2:*:*:*:*:*:*
microsoft excel 2007 cpe:2.3:a:microsoft:excel:2007:*:*:*:*:*:*:*
microsoft excel_viewer 2003 cpe:2.3:a:microsoft:excel_viewer:2003:*:*:*:*:*:*:*
microsoft office 2000 cpe:2.3:a:microsoft:office:2000:sp3:*:*:*:*:*:*
microsoft office 2003 cpe:2.3:a:microsoft:office:2003:*:*:*:*:*:*:*
microsoft office 2003 cpe:2.3:a:microsoft:office:2003:sp2:*:*:*:*:*:*
microsoft office 2007 cpe:2.3:a:microsoft:office:2007:*:*:*:*:*:*:*
microsoft office xp cpe:2.3:a:microsoft:office:xp:sp3:*:*:*:*:*:*

References for CVE-2007-1756

cvelogic Threat Intelligence