How severe is CVE-2010-3240?

CVE-2010-3240 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2010-3240 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 21% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-3240?

CVE-2010-3240 primarily affects Microsoft Excel. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-3240?

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-2010-3240 published?

CVE-2010-3240 was published on 2010-10-13 and last updated on 2026-06-16.

CVE-2010-3240

CVE-2010-3240 is a critical-severity vulnerability in Microsoft Excel with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 21% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-20.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 21% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Microsoft Excel
Published: 2010-10-13
Last modified: 2026-06-16

Description

Microsoft Excel 2002 SP3 and 2007 SP2; Excel Viewer SP2; and Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP2 do not properly validate record information, which allows remote attackers to execute arbitrary code via a crafted Excel document, aka "Real Time Data Array Record Vulnerability."

Frequently asked questions

What is CVE-2010-3240?: Microsoft Excel 2002 SP3 and 2007 SP2; Excel Viewer SP2; and Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP2 do not properly validate record information, which allows remote attackers to execute arbitrary code via a crafted Excel document, aka "Real Time Data Array Record Vulnerability."
How severe is CVE-2010-3240?: CVE-2010-3240 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2010-3240 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 21% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-3240?: CVE-2010-3240 primarily affects Microsoft Excel. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2010-3240?: 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-2010-3240 published?: CVE-2010-3240 was published on 2010-10-13 and last updated on 2026-06-16.

References

Affected products (4)

cpe:2.3:a:microsoft:excel:2002:sp3:*:*:*:*:*:*
cpe:2.3:a:microsoft:excel:2007:sp2:*:*:*:*:*:*
cpe:2.3:a:microsoft:excel_viewer:*:sp2:*:*:*:*:*:*
cpe:2.3:a:microsoft:office_compatibility_pack:2007:sp2:*:*:*:*:*:*

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