CVE-2006-1993

Mozilla Firefox 1.5.0.2 - Denial of Service via Deleted Controller Context Reference

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2006-1993. PoCs published by splices.

AI-analyzed exploit summary This exploit leverages a buffer overflow in Firefox 1.5.0.2 via improper handling of JavaScript in js320.dll and xpcom_core.dll when manipulating iframe.contentWindow.focus(). It results in remote code execution or denial of service.

Description

Mozilla Firefox 1.5.0.2, when designMode is enabled, allows remote attackers to cause a denial of service and possibly execute arbitrary code via certain Javascript that is not properly handled by the contentWindow.focus method in an iframe, which causes a reference to a deleted controller context object. NOTE: this was originally claimed to be a buffer overflow in (1) js320.dll and (2) xpcom_core.dll, but the vendor disputes this claim.

Exploits (1)

exploitdb WORKING POC VERIFIED
by splices · htmldosmultiple
https://www.exploit-db.com/exploits/1716

This exploit leverages a buffer overflow in Firefox 1.5.0.2 via improper handling of JavaScript in js320.dll and xpcom_core.dll when manipulating iframe.contentWindow.focus(). It results in remote code execution or denial of service.

Classification
Working Poc 80%
Attack Type
Rce | Dos
Complexity
Moderate
Reliability
Reliable
Target: Firefox 1.5.0.2
No auth needed
Prerequisites: Victim must visit a malicious webpage or link
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (24)

Core 24
Core References
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/20214
Patch, Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/19802
Vendor Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2006/3748
Third Party Advisory, VDB Entry vdb-entry signature x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1790
Third Party Advisory, VDB Entry vendor-advisory x_refsource_hp
http://www.securityfocus.com/archive/1/434524/100/0/threaded
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/20019
Exploit x_refsource_misc
http://www.securident.com/vuln/ff.txt
Exploit, Patch vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/17671
Third Party Advisory vendor-advisory x_refsource_gentoo
http://www.gentoo.org/security/en/glsa/glsa-200605-06.xml
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/25994
Vendor Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2006/1922
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2006/dsa-1055
Third Party Advisory, US Government Resource third-party-advisory x_refsource_cert-vn
http://www.kb.cert.org/vuls/id/866300
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/20015
Exploit vdb-entry x_refsource_sectrack
http://securitytracker.com/id?1015981
Vendor Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2008/0083
Vendor Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2006/1614
Third Party Advisory, VDB Entry vendor-advisory x_refsource_hp
http://www.securityfocus.com/archive/1/446658/100/200/threaded
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/431878/100/0/threaded
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/22066
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/20070
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2006/dsa-1053
Third Party Advisory third-party-advisory x_refsource_sreason
http://securityreason.com/securityalert/780

Scores

EPSS 0.5135
EPSS Percentile 98.8%

Details

CWE
CWE-399
Status published
Products (1)
mozilla/firefox 1.5.0.2
Published Apr 25, 2006
Tracked Since Feb 18, 2026