How severe is CVE-2009-2506?

CVE-2009-2506 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2009-2506 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 31% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-2506?

CVE-2009-2506 primarily affects Microsoft Windows 2000. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-2506?

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-2009-2506 published?

CVE-2009-2506 was published on 2009-12-09 and last updated on 2026-06-16.

CVE-2009-2506

CVE-2009-2506 is a critical-severity vulnerability in Microsoft Windows 2000 with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 31% 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: 31% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-189
Affected product: Microsoft Windows 2000
Published: 2009-12-09
Last modified: 2026-06-16

Description

Integer overflow in the text converters in Microsoft Office Word 2002 SP3 and 2003 SP3; Works 8.5; Office Converter Pack; and WordPad in Windows 2000 SP4, XP SP2 and SP3, and Server 2003 SP2 allows remote attackers to execute arbitrary code via a DOC file with an invalid number of property names in the DocumentSummaryInformation stream, which triggers a heap-based buffer overflow.

Frequently asked questions

What is CVE-2009-2506?: Integer overflow in the text converters in Microsoft Office Word 2002 SP3 and 2003 SP3; Works 8.5; Office Converter Pack; and WordPad in Windows 2000 SP4, XP SP2 and SP3, and Server 2003 SP2 allows remote attackers to execute arbitrary code via a DOC file with an invalid number of property names in the DocumentSummaryInformation stream, which triggers a heap-based buffer overflow.
How severe is CVE-2009-2506?: CVE-2009-2506 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2009-2506 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 31% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-2506?: CVE-2009-2506 primarily affects Microsoft Windows 2000. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-2506?: 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-2009-2506 published?: CVE-2009-2506 was published on 2009-12-09 and last updated on 2026-06-16.

References

Affected products (10)

cpe:2.3:o:microsoft:windows_2000:*:sp4:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2003:*:sp2:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_xp:*:sp2:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_xp:*:sp2:x64:*:*:*:*:*
cpe:2.3:o:microsoft:windows_xp:*:sp3:*:*:*:*:*:*
cpe:2.3:a:microsoft:office_converter_pack:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:office_word:2002:sp3:*:*:*:*:*:*
cpe:2.3:a:microsoft:office_word:2003:sp3:*:*:*:*:*:*
cpe:2.3:a:microsoft:wordpad:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:works:8.5:*:*:*:*:*:*:*

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