CVE-2007-0031

CVE-2007-0031 is a critical-severity vulnerability in Microsoft Excel with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 42% places it in the 99th percentile, indicating an elevated likelihood of exploitation.

Key facts

Description

Heap-based buffer overflow in Microsoft Excel 2000 SP3, 2002 SP3, 2003 SP2, 2004 for Mac, and v.X for Mac allows user-assisted remote attackers to execute arbitrary code via a BIFF8 spreadsheet with a PALETTE record that contains a large number of entries.

Frequently asked questions

What is CVE-2007-0031?
Heap-based buffer overflow in Microsoft Excel 2000 SP3, 2002 SP3, 2003 SP2, 2004 for Mac, and v.X for Mac allows user-assisted remote attackers to execute arbitrary code via a BIFF8 spreadsheet with a PALETTE record that contains a large number of entries.
How severe is CVE-2007-0031?
CVE-2007-0031 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2007-0031 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 42% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-0031?
CVE-2007-0031 primarily affects Microsoft Excel. In total, 11 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-0031?
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-2007-0031 published?
CVE-2007-0031 was published on 2007-01-09 and last updated on 2026-06-16.

References

Affected products (11)

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