How severe is CVE-2010-3230?

CVE-2010-3230 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2010-3230 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 20% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-3230?

CVE-2010-3230 affects Microsoft Excel. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2010-3230?

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-2010-3230 published?

CVE-2010-3230 was published on 2010-10-13 and last updated on 2026-06-16.

CVE-2010-3230

CVE-2010-3230 is a critical-severity vulnerability in Microsoft Excel with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 20% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-189.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 20% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-189
Affected product: Microsoft Excel
Published: 2010-10-13
Last modified: 2026-06-16

Description

Integer overflow in Microsoft Excel 2002 SP3 allows remote attackers to execute arbitrary code via an Excel document with crafted record information, aka "Excel Record Parsing Integer Overflow Vulnerability."

Frequently asked questions

What is CVE-2010-3230?: Integer overflow in Microsoft Excel 2002 SP3 allows remote attackers to execute arbitrary code via an Excel document with crafted record information, aka "Excel Record Parsing Integer Overflow Vulnerability."
How severe is CVE-2010-3230?: CVE-2010-3230 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2010-3230 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 20% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-3230?: CVE-2010-3230 affects Microsoft Excel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2010-3230?: 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-2010-3230 published?: CVE-2010-3230 was published on 2010-10-13 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:microsoft:excel:2002:sp3:*:*:*:*:*:*

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