Buffer overflow in the debug functionality in fp30reg.dll of Microsoft FrontPage Server Extensions (FPSE) 2000 and 2002 allows remote attackers to execute arbitrary code via a crafted chunked encoded request.
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Buffer overflow in the debug functionality in fp30reg.dll of Microsoft FrontPage Server Extensions (FPSE) 2000 and 2002 allows remote attackers to execute arbitrary code via a crafted chunked encoded request.
December 15, 2003
April 16, 2026
Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.
Working exploit code is in the public domain (1 Metasploit module) (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
Microsoft IIS - ISAPI FrontPage 'fp30reg.dll' Chunked Overflow (MS03-051) (Metasploit)
Open source ↗Microsoft FrontPage Server Extensions - 'fp30reg.dll' (MS03-051)
Open source ↗MS03-051 Microsoft IIS ISAPI FrontPage fp30reg.dll Chunked Overflow
Open source ↗See which npm, PyPI, Go, and Maven packages are affected by CVE-2003-0822
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