CVE-2007-2496

EXPLOITED

WordViewer.ocx 3.2.0.5 - Denial of Service via Long Property Value

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2007-2496 has been observed exploited in the wild (reported by VulnCheck KEV). EIP tracks 1 public exploit from researchers including shinnai.

AI-analyzed exploit summary This exploit demonstrates a Denial of Service (DoS) vulnerability in WordViewer.ocx v3.2.0.5 by passing excessively long strings or invalid arguments to multiple methods, causing the application to crash.

Description

The WordOCX ActiveX control in WordViewer.ocx 3.2.0.5 allows remote attackers to cause a denial of service (Internet Explorer 7 crash) via a long (1) DoOleCommand, (2) FTPDownloadFile, (3) FTPUploadFile, (4) HttpUploadFile, (5) GotoPage, (6) Save, (7) SaveWebFile, (8) HttpDownloadFile, (9) Open, (10) OpenWebFile, (11) SaveAs, or (12) ShowWordStandardDialog property value.

Exploits (1)

exploitdb WORKING POC VERIFIED
by shinnai · htmldoswindows
https://www.exploit-db.com/exploits/3836

This exploit demonstrates a Denial of Service (DoS) vulnerability in WordViewer.ocx v3.2.0.5 by passing excessively long strings or invalid arguments to multiple methods, causing the application to crash.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: WordViewer.ocx v3.2.0.5
No auth needed
Prerequisites: Internet Explorer with the vulnerable WordViewer.ocx control installed
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (6)

Core 6
Core References
Third Party Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2007/1634
Third Party Advisory, VDB Entry vdb-entry x_refsource_osvdb
http://osvdb.org/34334
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/23784
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/25100
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/34027

Scores

EPSS 0.0736
EPSS Percentile 91.9%

Details

VulnCheck KEV 2010-05-01
Status published
Products (1)
office_ocx/word_viewer_ocx 3.2.0.5
Published May 04, 2007
Tracked Since Feb 18, 2026