How severe is CVE-2011-0980?

CVE-2011-0980 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2011-0980 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 26% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-0980?

CVE-2011-0980 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-2011-0980?

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-2011-0980 published?

CVE-2011-0980 was published on 2011-02-10 and last updated on 2026-06-16.

CVE-2011-0980

CVE-2011-0980 is a critical-severity vulnerability in Microsoft Excel with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 26% 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: 26% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Microsoft Excel
Published: 2011-02-10
Last modified: 2026-06-16

Description

Microsoft Excel 2002 SP3 and 2003 SP3, Office 2004 and 2008 for Mac, and Open XML File Format Converter for Mac do not properly parse Office Art objects, which allows remote attackers to execute arbitrary code via vectors related to a function pointer, aka "Excel Dangling Pointer Vulnerability."

Frequently asked questions

What is CVE-2011-0980?: Microsoft Excel 2002 SP3 and 2003 SP3, Office 2004 and 2008 for Mac, and Open XML File Format Converter for Mac do not properly parse Office Art objects, which allows remote attackers to execute arbitrary code via vectors related to a function pointer, aka "Excel Dangling Pointer Vulnerability."
How severe is CVE-2011-0980?: CVE-2011-0980 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2011-0980 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 26% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-0980?: CVE-2011-0980 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-2011-0980?: 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-2011-0980 published?: CVE-2011-0980 was published on 2011-02-10 and last updated on 2026-06-16.

References

Affected products (6)

cpe:2.3:a:microsoft:excel:2002:sp3:*:*:*:*:*:*
cpe:2.3:a:microsoft:excel:2003:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:excel:2003:sp3:*:*:*:*:*:*
cpe:2.3:a:microsoft:office:2004:*:mac:*:*:*:*:*
cpe:2.3:a:microsoft:office:2008:*:mac:*:*:*:*:*
cpe:2.3:a:microsoft:open_xml_file_format_converter:*:*:mac:*:*:*:*:*

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