CVE-2006-5633

Firefox 1.5.0.7 and 2.0 and Seamonkey 1.1b - Denial of Service via DocType Node Range Manipulation

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2006-5633. PoCs published by Gotfault Security.

AI-analyzed exploit summary This exploit demonstrates a denial-of-service (DoS) vulnerability in Mozilla Firefox by triggering a NULL pointer dereference in the Range object's createContextualFragment method when a DOCUMENT_TYPE_NODE is selected. The PoC crashes Firefox by manipulating the DOM Range API.

Description

Firefox 1.5.0.7 and 2.0, and Seamonkey 1.1b, allows remote attackers to cause a denial of service (crash) by creating a range object using createRange, calling selectNode on a DocType node (DOCUMENT_TYPE_NODE), then calling createContextualFragment on the range, which triggers a null dereference. NOTE: the original Bugtraq post mentioned that code execution was possible, but followup analysis has shown that it is only a null dereference.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Gotfault Security · htmldosmultiple
https://www.exploit-db.com/exploits/2695

This exploit demonstrates a denial-of-service (DoS) vulnerability in Mozilla Firefox by triggering a NULL pointer dereference in the Range object's createContextualFragment method when a DOCUMENT_TYPE_NODE is selected. The PoC crashes Firefox by manipulating the DOM Range API.

Classification
Working Poc 100%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Mozilla Firefox 1.5.0.7 and below, 2.0
No auth needed
Prerequisites: Victim must visit a malicious webpage or open a crafted HTML file
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (11)

Core 11
Core References
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/450682/100/200/threaded
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/450155/100/0/threaded
Exploit, Vendor Advisory mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/450168/100/0/threaded
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/29916
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/452803/100/0/threaded
Exploit, Vendor Advisory x_refsource_misc
http://www.gotfault.net/research/advisory/gadv-firefox.txt
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/450167/100/0/threaded
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/20799

Scores

EPSS 0.0686
EPSS Percentile 93.2%

Details

Status published
Products (3)
mozilla/firefox 1.5.0.7
mozilla/firefox 2.0
mozilla/seamonkey 1.1 beta
Published Oct 31, 2006
Tracked Since Feb 18, 2026