CVE-2003-0659

CVE-2003-0659 is a high-severity vulnerability in Microsoft Windows 2000 with a CVSS 2.0 base score of 7.2. Its EPSS exploit-prediction score of 34% places it in the 98th percentile, indicating an elevated likelihood of exploitation.

Key facts

Description

Buffer overflow in a function in User32.dll on Windows NT through Server 2003 allows local users to execute arbitrary code via long (1) LB_DIR messages to ListBox or (2) CB_DIR messages to ComboBox controls in a privileged application.

Frequently asked questions

What is CVE-2003-0659?
Buffer overflow in a function in User32.dll on Windows NT through Server 2003 allows local users to execute arbitrary code via long (1) LB_DIR messages to ListBox or (2) CB_DIR messages to ComboBox controls in a privileged application.
How severe is CVE-2003-0659?
CVE-2003-0659 has a CVSS 2.0 base score of 7.2, rated high severity.
Is CVE-2003-0659 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-2003-0659?
CVE-2003-0659 primarily affects Microsoft Windows 2000. In total, 49 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2003-0659?
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-2003-0659 published?
CVE-2003-0659 was published on 2003-11-17 and last updated on 2026-06-16.

References

Affected products (49)

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