Buffer overflow in the debug functionality in fp30reg.dll of Microsoft FrontPage Server Extensions (FPSE) 2000 and 2002 allows remote attack
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.
- Published
- Dec 15, 2003
- Updated
- Jun 16, 2026
- EPSS
- 83.0% · 100th percentile
- CWE
- —
Sign in to follow · You’ll be notified if a followed record enters KEV, gets an exploit or is updated.
Report tools
Action score
55
Plan
Add it to your regular patch cycle.
- CVSS
- 30 / 40 · 7.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 25 / 30 · 83.0%
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpAffected systems
| Vendor | Product | CPE |
|---|---|---|
| microsoft | frontpage server extensions | cpe:2.3:a:microsoft:frontpage_server_extensions |
| microsoft | sharepoint team services | cpe:2.3:a:microsoft:sharepoint_team_services |
| microsoft | windows 2000 | cpe:2.3:o:microsoft:windows_2000 |
| microsoft | windows xp | cpe:2.3:o:microsoft:windows_xp |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- microsoft frontpage server extensions2000
- microsoft frontpage server extensions2002
- microsoft sharepoint team services2002
- microsoft windows 2000all versions
- microsoft windows xpall versions
Same product
microsoft: all recordsOther highest-scoring records for the same primary product.
- CVE-2001-0341Buffer overflow in Microsoft Visual Studio RAD Support sub-component of FrontPage Server Extensions allows remote attackers to execute arbit38Monitor
- CVE-2002-0692Buffer overflow in SmartHTML Interpreter (shtml.dll) in Microsoft FrontPage Server Extensions (FPSE) 2000 and 2002 allows remote attackers t35Monitor
- CVE-2006-0015Cross-site scripting (XSS) vulnerability in _vti_bin/_vti_adm/fpadmdll.dll in Microsoft FrontPage Server Extensions 2002 and SharePoint Team34Monitor
- CVE-2003-0824Unknown vulnerability in the SmartHTML interpreter (shtml.dll) in Microsoft FrontPage Server Extensions 2000 and 2002, and Microsoft SharePo31Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
Weaponized
A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.
Evidence
- Metasploit module ×1
- Exploit-DB entry ×2
Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.
| Source | Kind | Date |
|---|---|---|
| Exploit-DB entry | remote | 2003-11-13 |
| Exploit-DB entry | remote | 2010-07-25 |
| Metasploit module | exploit/windows/isapi/ms03_051_fp30reg_chunkedMS03-051 Microsoft IIS ISAPI FrontPage fp30reg.dll Chunked Overflowexploit | 2003-11-11 |
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
- Metasploit-34 d
- First PoC-32 d
- Published
- TodayOct 4, 2026+8329 d
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- P · data can be read
- Integrity
- P · data or configuration can be modified
- Availability
- P · the service can be disrupted
- Attack complexity
- Low
- Confidentiality impact
- P
- Integrity impact
- P
- Availability impact
- P
Weakness class (CWE)
—
CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
- marc.info/?l=bugtraq&m=106865318904055&w=2
- marc.info/?l=ntbugtraq&m=106862654906759&w=2
- secunia.com/advisories/10195
- www.kb.cert.org/vuls/id/279156
- docs.microsoft.com/en-us/security-updates/securitybulletins/2003/ms03-051
- exchange.xforce.ibmcloud.com/vulnerabilities/13674
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A364
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A366
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A367
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A699
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A743
Vendor advisories and official records. Exploit/PoC links are deliberately left out.