How severe is CVE-2015-6122?

CVE-2015-6122 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2015-6122 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-6122?

CVE-2015-6122 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-2015-6122?

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-2015-6122 published?

CVE-2015-6122 was published on 2015-12-09 and last updated on 2026-06-17.

CVE-2015-6122

CVE-2015-6122 is a critical-severity vulnerability in Microsoft Excel with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 14% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 14% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Microsoft Excel
Published: 2015-12-09
Last modified: 2026-06-17

Description

Microsoft Excel 2007 SP3, Excel 2010 SP2, Excel for Mac 2011, Office Compatibility Pack SP3, and Excel Viewer allow remote attackers to execute arbitrary code via a crafted Office document, aka "Microsoft Office Memory Corruption Vulnerability."

Frequently asked questions

What is CVE-2015-6122?: Microsoft Excel 2007 SP3, Excel 2010 SP2, Excel for Mac 2011, Office Compatibility Pack SP3, and Excel Viewer allow remote attackers to execute arbitrary code via a crafted Office document, aka "Microsoft Office Memory Corruption Vulnerability."
How severe is CVE-2015-6122?: CVE-2015-6122 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2015-6122 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-6122?: CVE-2015-6122 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-2015-6122?: 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-2015-6122 published?: CVE-2015-6122 was published on 2015-12-09 and last updated on 2026-06-17.

References

Affected products (6)

cpe:2.3:a:microsoft:excel:2007:sp3:*:*:*:*:*:*
cpe:2.3:a:microsoft:excel:2010:sp1:*:*:*:x86:*:*
cpe:2.3:a:microsoft:excel:2010:sp2:*:*:*:*:x64:*
cpe:2.3:a:microsoft:excel_for_mac:2011:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:excel_viewer:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:office_compatibility_pack:*:sp3:*:*:*:*:*:*

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