How severe is CVE-2009-0221?

CVE-2009-0221 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2009-0221 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 38% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-0221?

CVE-2009-0221 primarily affects Microsoft Office Powerpoint. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-0221?

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-2009-0221 published?

CVE-2009-0221 was published on 2009-05-12 and last updated on 2026-06-16.

CVE-2009-0221

CVE-2009-0221 is a critical-severity vulnerability in Microsoft Office Powerpoint with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 38% 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: 38% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-189
Affected product: Microsoft Office Powerpoint
Published: 2009-05-12
Last modified: 2026-06-16

Description

Integer overflow in Microsoft Office PowerPoint 2002 SP3 and 2003 SP3 allows remote attackers to execute arbitrary code via a PowerPoint file containing a crafted record type for "collaboration information for different slides" that contains a field that specifies a large number of records, which triggers an under-allocated buffer and a heap-based buffer overflow, aka "Integer Overflow Vulnerability."

Frequently asked questions

What is CVE-2009-0221?: Integer overflow in Microsoft Office PowerPoint 2002 SP3 and 2003 SP3 allows remote attackers to execute arbitrary code via a PowerPoint file containing a crafted record type for "collaboration information for different slides" that contains a field that specifies a large number of records, which triggers an under-allocated buffer and a heap-based buffer overflow, aka "Integer Overflow Vulnerability."
How severe is CVE-2009-0221?: CVE-2009-0221 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2009-0221 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 38% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-0221?: CVE-2009-0221 primarily affects Microsoft Office Powerpoint. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-0221?: 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-2009-0221 published?: CVE-2009-0221 was published on 2009-05-12 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:microsoft:office_powerpoint:2002:sp3:*:*:*:*:*:*
cpe:2.3:a:microsoft:office_powerpoint:2003:sp3:*:*:*:*:*:*

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