How severe is CVE-2015-2470?

CVE-2015-2470 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2015-2470 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 27% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-2470?

CVE-2015-2470 primarily affects Microsoft Office. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-2470?

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-2015-2470 published?

CVE-2015-2470 was published on 2015-08-15 and last updated on 2026-06-17.

CVE-2015-2470

CVE-2015-2470 is a critical-severity vulnerability in Microsoft Office with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 27% places it in the 98th 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: 27% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-189
Affected product: Microsoft Office
Published: 2015-08-15
Last modified: 2026-06-17

Description

Integer underflow in Microsoft Office 2007 SP3, Office 2010 SP2, Office 2013 SP1, Office 2013 RT SP1, Office for Mac 2011, and Word Viewer allows remote attackers to execute arbitrary code via a crafted document, aka "Microsoft Office Integer Underflow Vulnerability."

Frequently asked questions

What is CVE-2015-2470?: Integer underflow in Microsoft Office 2007 SP3, Office 2010 SP2, Office 2013 SP1, Office 2013 RT SP1, Office for Mac 2011, and Word Viewer allows remote attackers to execute arbitrary code via a crafted document, aka "Microsoft Office Integer Underflow Vulnerability."
How severe is CVE-2015-2470?: CVE-2015-2470 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2015-2470 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 27% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-2470?: CVE-2015-2470 primarily affects Microsoft Office. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-2470?: 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-2015-2470 published?: CVE-2015-2470 was published on 2015-08-15 and last updated on 2026-06-17.

References

Affected products (6)

cpe:2.3:a:microsoft:office:2010:sp2:*:*:*:*:x64:*
cpe:2.3:a:microsoft:office:2010:sp2:*:*:*:*:x86:*
cpe:2.3:a:microsoft:office:2011:*:*:*:mac:*:*:*
cpe:2.3:a:microsoft:office:2013:sp1:*:*:*:*:*:*
cpe:2.3:a:microsoft:word:2007:sp3:*:*:*:*:*:*
cpe:2.3:a:microsoft:word_viewer:*:*:*:*:*:*:*:*

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