CVE-2003-0820

CVE-2003-0820 is a high-severity vulnerability in Microsoft Word with a CVSS 2.0 base score of 7.5. Its EPSS exploit-prediction score of 26% places it in the 98th percentile, indicating an elevated likelihood of exploitation.

Key facts

Description

Microsoft Word 97, 98(J), 2000, and 2002, and Microsoft Works Suites 2001 through 2004, do not properly check the length of the "Macro names" data value, which could allow remote attackers to execute arbitrary code via a buffer overflow attack.

Frequently asked questions

What is CVE-2003-0820?
Microsoft Word 97, 98(J), 2000, and 2002, and Microsoft Works Suites 2001 through 2004, do not properly check the length of the "Macro names" data value, which could allow remote attackers to execute arbitrary code via a buffer overflow attack.
How severe is CVE-2003-0820?
CVE-2003-0820 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2003-0820 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-2003-0820?
CVE-2003-0820 primarily affects Microsoft Word. In total, 27 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2003-0820?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2003-0820 published?
CVE-2003-0820 was published on 2003-12-15 and last updated on 2026-06-16.

References

Affected products (27)

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