How severe is CVE-2009-0235?

CVE-2009-0235 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2009-0235 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 34% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-0235?

CVE-2009-0235 primarily affects Microsoft Windows 2000. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-0235?

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-2009-0235 published?

CVE-2009-0235 was published on 2009-04-15 and last updated on 2026-06-16.

CVE-2009-0235

CVE-2009-0235 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 34% places it in the 98th 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: 34% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Microsoft Windows 2000
Published: 2009-04-15
Last modified: 2026-06-16

Description

Stack-based buffer overflow in the Word 97 text converter in WordPad in Microsoft Windows 2000 SP4, XP SP2 and SP3, and Server 2003 SP1 and SP2 allows remote attackers to execute arbitrary code via a crafted Word 97 file that triggers memory corruption, related to use of inconsistent integer data sizes for an unspecified length field, aka "WordPad Word 97 Text Converter Stack Overflow Vulnerability."

Frequently asked questions

What is CVE-2009-0235?: Stack-based buffer overflow in the Word 97 text converter in WordPad in Microsoft Windows 2000 SP4, XP SP2 and SP3, and Server 2003 SP1 and SP2 allows remote attackers to execute arbitrary code via a crafted Word 97 file that triggers memory corruption, related to use of inconsistent integer data sizes for an unspecified length field, aka "WordPad Word 97 Text Converter Stack Overflow Vulnerability."
How severe is CVE-2009-0235?: CVE-2009-0235 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2009-0235 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 34% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-0235?: CVE-2009-0235 primarily affects Microsoft Windows 2000. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-0235?: 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-2009-0235 published?: CVE-2009-0235 was published on 2009-04-15 and last updated on 2026-06-16.

References

Affected products (5)

cpe:2.3:o:microsoft:windows_2000:*:sp4:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_2003_server:*:sp1:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_2003_server:*:sp2:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_xp:*:sp2:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_xp:*:sp3:*:*:*:*:*:*

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