CVE-2007-1203

CVE-2007-1203 is a critical-severity vulnerability in Microsoft Excel with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 31% places it in the 98th percentile, indicating an elevated likelihood of exploitation.

Key facts

Description

Unspecified vulnerability in Microsoft Excel 2000 SP3, 2002 SP3, 2003 SP2, 2003 Viewer, 2004 for Mac, and 2007 allows user-assisted remote attackers to execute arbitrary code via a crafted set font value in an Excel file, which results in memory corruption.

Frequently asked questions

What is CVE-2007-1203?
Unspecified vulnerability in Microsoft Excel 2000 SP3, 2002 SP3, 2003 SP2, 2003 Viewer, 2004 for Mac, and 2007 allows user-assisted remote attackers to execute arbitrary code via a crafted set font value in an Excel file, which results in memory corruption.
How severe is CVE-2007-1203?
CVE-2007-1203 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2007-1203 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 31% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-1203?
CVE-2007-1203 primarily affects Microsoft Excel. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-1203?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2007-1203 published?
CVE-2007-1203 was published on 2007-05-08 and last updated on 2026-06-16.

References

Affected products (6)

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