CVE-2006-5633
Firefox 1.5.0.7 and 2.0, and Seamonkey 1.1b, allows remote attackers to cause a denial of service...
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.
Exploit likelihood
What each source reports
NVD Score used
5.0
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.
- Record
CVE-2006-5633- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2006-5633- Updated
- 2026-11-02
EUVDEUVD-2006-5618 No score
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.
- Record
EUVD-2006-5618- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-vwr8-5r39-5qmj No score
Firefox 1.5.0.7 and 2.0, and Seamonkey 1.1b, allows remote attackers to cause a denial of service...
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.
- Record
GHSA-vwr8-5r39-5qmj- Updated
- 2026-11-02
OSV No score
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.
- Record
CVE-2006-5633- Updated
- 2026-11-02
OSVDEBIAN-CVE-2006-5633 No score
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.
- Record
DEBIAN-CVE-2006-5633- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
firefox-esrDebian:12 |
before 45.0esr-1 | 45.0esr-1 |
firefox-esrDebian:13 |
before 45.0esr-1 | 45.0esr-1 |
firefox-esrDebian:14 |
before 45.0esr-1 | 45.0esr-1 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Mozilla Firefox 1.5.0.7/2.0 - 'createRange' Remote Denial of Service | 2006-10-31 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2006-5633 is a medium vulnerability (CVSS 5.0) in Mozilla Firefox, published October 31, 2006. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 7.47%, the 94th percentile. Fixed in firefox-esr 45.0esr-1.
References
securityfocus.com/archive/1/450682/100/200/threaded
securityfocus.com/archive/1/450155/100/0/threaded
securityfocus.com/archive/1/450168/100/0/threaded
lists.grok.org.uk/pipermail/full-disclosure/2006-October/050416.html
bugzilla.mozilla.org/show_bug.cgi?id=358797
exchange.xforce.ibmcloud.com/vulnerabilities/29916
Show 8 moreShow less
securityfocus.com/archive/1/452803/100/0/threaded
gotfault.net/research/advisory/gadv-firefox.txt
securityfocus.com/archive/1/450167/100/0/threaded
securityfocus.com/bid/20799
bugzilla.redhat.com/bugzilla/show_bug.cgi?id=213237
nvd.nist.gov/vuln/detail/CVE-2006-5633
github.com/advisories/GHSA-vwr8-5r39-5qmj
security-tracker.debian.org/tracker/CVE-2006-5633