# CVE-2003-0503

## Summary

- **CVE ID:** CVE-2003-0503
- **Severity:** UNKNOWN
- **CVSS Score:** 0.63
- **CWE:** N/A
- **Published:** Jul 4, 2003
- **Last Modified:** Mar 16, 2026

## Description

Buffer overflow in the ShellExecute API function of SHELL32.DLL in Windows 2000 before SP4 may allow attackers to cause a denial of service or execute arbitrary code via a long third argument.

## Affected Products

- n/a — n/a (n/a)

## References

- [CNA](http://marc.info/?l=bugtraq&m=105725489003575&w=2)
- [CNA](http://marc.info/?l=ntbugtraq&m=105724538222772&w=2)
- [CNA](http://www.lac.co.jp/security/intelligence/SNSAdvisory/65.html)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 15.83%
- **EPSS Percentile:** 94.6

---
_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._