How severe is CVE-2012-1847?

CVE-2012-1847 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2012-1847 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 25% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-1847?

CVE-2012-1847 primarily affects Microsoft Excel. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-1847?

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-2012-1847 published?

CVE-2012-1847 was published on 2012-05-09 and last updated on 2026-06-16.

CVE-2012-1847

CVE-2012-1847 is a critical-severity vulnerability in Microsoft Excel with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 25% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-264.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 25% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Microsoft Excel
Published: 2012-05-09
Last modified: 2026-06-16

Description

Microsoft Excel 2003 SP3, 2007 SP2 and SP3, and 2010 Gold and SP1; Office 2008 and 2011 for Mac; Excel Viewer; and Office Compatibility Pack SP2 and SP3 do not properly handle memory during the opening of files, which allows remote attackers to execute arbitrary code via a crafted spreadsheet, aka "Excel Series Record Parsing Type Mismatch Could Result in Remote Code Execution Vulnerability."

Frequently asked questions

What is CVE-2012-1847?: Microsoft Excel 2003 SP3, 2007 SP2 and SP3, and 2010 Gold and SP1; Office 2008 and 2011 for Mac; Excel Viewer; and Office Compatibility Pack SP2 and SP3 do not properly handle memory during the opening of files, which allows remote attackers to execute arbitrary code via a crafted spreadsheet, aka "Excel Series Record Parsing Type Mismatch Could Result in Remote Code Execution Vulnerability."
How severe is CVE-2012-1847?: CVE-2012-1847 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2012-1847 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 25% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-1847?: CVE-2012-1847 primarily affects Microsoft Excel. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-1847?: 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-2012-1847 published?: CVE-2012-1847 was published on 2012-05-09 and last updated on 2026-06-16.

References

Affected products (10)

cpe:2.3:a:microsoft:excel:2003:sp3:*:*:*:*:*:*
cpe:2.3:a:microsoft:excel:2007:sp2:*:*:*:*:*:*
cpe:2.3:a:microsoft:excel:2007:sp3:*:*:*:*:*:*
cpe:2.3:a:microsoft:excel:2010:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:excel:2010:sp1:*:*:*:*:*:*
cpe:2.3:a:microsoft:excel_viewer:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:office:2008:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:office:2011:*:mac:*:*:*:*:*
cpe:2.3:a:microsoft:office_compatibility_pack:*:sp2:*:*:*:*:*:*
cpe:2.3:a:microsoft:office_compatibility_pack:*:sp3:*:*:*:*:*:*

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