CVE-2009-1838

The garbage-collection implementation in Mozilla Firefox before 3.0.11, Thunderbird before 2.0.0...

9.3 High

The garbage-collection implementation in Mozilla Firefox before 3.0.11, Thunderbird before 2.0.0.22, and SeaMonkey before 1.1.17 sets an element's owner document to null in unspecified circumstances, which allows remote attackers to execute arbitrary JavaScript with chrome privileges via a crafted event handler, related to an incorrect context for this event handler.

Exploit likelihood

4.79%Up 0.9 points since Feb 4, 2022

What each source reports

NVD Score used 9.3

Record: CVE-2009-1838
CVSS 2.0: 9.3 HighAV:N/AC:M/Au:N/C:C/I:C/A:C
Weakness: CWE-94
Updated: 2026-11-02

CVE List No score

Record: CVE-2009-1838
Updated: 2026-11-02

EUVDEUVD-2009-1833 No score

Record: EUVD-2009-1833
Updated: 2026-11-03

GitHub AdvisoriesGHSA-p6f8-2h8r-5246 No score

The garbage-collection implementation in Mozilla Firefox before 3.0.11, Thunderbird before 2.0.0...

Record: GHSA-p6f8-2h8r-5246
Weakness: CWE-94
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`xulrunner` Debian:5.0 From an advisory covering 12 CVEs	before 1.9.0.11-0lenny1, plus listed versions 1.9.0.10-11.9.0.5-11.9.0.6-11.9.0.7-0lenny11.9.0.7-0lenny2 Show 4 moreShow less 1.9.0.7-11.9.0.8-11.9.0.9-0lenny21.9.0.9-1	1.9.0.11-0lenny1
`icedove` Debian:5.0 From an advisory covering 19 CVEs	before 2.0.0.22-0lenny1, plus listed versions 2.0.0.19-12.0.0.19-1+kbsd	2.0.0.22-0lenny1
`firefox` Red Hat:enterprise_linux:4::as From an advisory covering 11 CVEs	before 0:3.0.11-4.el4	0:3.0.11-4.el4
`firefox-debuginfo` Red Hat:enterprise_linux:4::as From an advisory covering 11 CVEs	before 0:3.0.11-4.el4	0:3.0.11-4.el4
`firefox` Red Hat:enterprise_linux:4::desktop From an advisory covering 11 CVEs	before 0:3.0.11-4.el4	0:3.0.11-4.el4
`firefox-debuginfo` Red Hat:enterprise_linux:4::desktop From an advisory covering 11 CVEs	before 0:3.0.11-4.el4	0:3.0.11-4.el4
`firefox` Red Hat:enterprise_linux:4::es From an advisory covering 11 CVEs	before 0:3.0.11-4.el4	0:3.0.11-4.el4
`firefox-debuginfo` Red Hat:enterprise_linux:4::es From an advisory covering 11 CVEs	before 0:3.0.11-4.el4	0:3.0.11-4.el4
`firefox` Red Hat:enterprise_linux:4::ws From an advisory covering 11 CVEs	before 0:3.0.11-4.el4	0:3.0.11-4.el4
`firefox-debuginfo` Red Hat:enterprise_linux:4::ws From an advisory covering 11 CVEs	before 0:3.0.11-4.el4	0:3.0.11-4.el4

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Affected packages
Package	Affected	Fixed
`xulrunner` Red Hat:enterprise_linux:5::client_workstation From an advisory covering 11 CVEs	before 0:1.9.0.11-3.el5_3	0:1.9.0.11-3.el5_3
`xulrunner-debuginfo` Red Hat:enterprise_linux:5::client_workstation From an advisory covering 11 CVEs	before 0:1.9.0.11-3.el5_3	0:1.9.0.11-3.el5_3
`xulrunner-devel` Red Hat:enterprise_linux:5::client_workstation From an advisory covering 11 CVEs	before 0:1.9.0.11-3.el5_3	0:1.9.0.11-3.el5_3
`xulrunner-devel-unstable` Red Hat:enterprise_linux:5::client_workstation From an advisory covering 11 CVEs	before 0:1.9.0.11-3.el5_3	0:1.9.0.11-3.el5_3
`firefox` Red Hat:enterprise_linux:5::client From an advisory covering 11 CVEs	before 0:3.0.11-2.el5_3	0:3.0.11-2.el5_3
`firefox-debuginfo` Red Hat:enterprise_linux:5::client From an advisory covering 11 CVEs	before 0:3.0.11-2.el5_3	0:3.0.11-2.el5_3
`xulrunner` Red Hat:enterprise_linux:5::client From an advisory covering 11 CVEs	before 0:1.9.0.11-3.el5_3	0:1.9.0.11-3.el5_3
`xulrunner-debuginfo` Red Hat:enterprise_linux:5::client From an advisory covering 11 CVEs	before 0:1.9.0.11-3.el5_3	0:1.9.0.11-3.el5_3
`firefox` Red Hat:enterprise_linux:5::server From an advisory covering 11 CVEs	before 0:3.0.11-2.el5_3	0:3.0.11-2.el5_3
`firefox-debuginfo` Red Hat:enterprise_linux:5::server From an advisory covering 11 CVEs	before 0:3.0.11-2.el5_3	0:3.0.11-2.el5_3
`xulrunner` Red Hat:enterprise_linux:5::server From an advisory covering 11 CVEs	before 0:1.9.0.11-3.el5_3	0:1.9.0.11-3.el5_3
`xulrunner-debuginfo` Red Hat:enterprise_linux:5::server From an advisory covering 11 CVEs	before 0:1.9.0.11-3.el5_3	0:1.9.0.11-3.el5_3
`xulrunner-devel` Red Hat:enterprise_linux:5::server From an advisory covering 11 CVEs	before 0:1.9.0.11-3.el5_3	0:1.9.0.11-3.el5_3
`xulrunner-devel-unstable` Red Hat:enterprise_linux:5::server From an advisory covering 11 CVEs	before 0:1.9.0.11-3.el5_3	0:1.9.0.11-3.el5_3
`seamonkey` Red Hat:enterprise_linux:3::as From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-chat` Red Hat:enterprise_linux:3::as From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-debuginfo` Red Hat:enterprise_linux:3::as From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-devel` Red Hat:enterprise_linux:3::as From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-dom-inspector` Red Hat:enterprise_linux:3::as From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-js-debugger` Red Hat:enterprise_linux:3::as From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-mail` Red Hat:enterprise_linux:3::as From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-nspr` Red Hat:enterprise_linux:3::as From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-nspr-devel` Red Hat:enterprise_linux:3::as From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-nss` Red Hat:enterprise_linux:3::as From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-nss-devel` Red Hat:enterprise_linux:3::as From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey` Red Hat:enterprise_linux:3::desktop From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-chat` Red Hat:enterprise_linux:3::desktop From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-debuginfo` Red Hat:enterprise_linux:3::desktop From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-devel` Red Hat:enterprise_linux:3::desktop From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-dom-inspector` Red Hat:enterprise_linux:3::desktop From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-js-debugger` Red Hat:enterprise_linux:3::desktop From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-mail` Red Hat:enterprise_linux:3::desktop From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-nspr` Red Hat:enterprise_linux:3::desktop From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-nspr-devel` Red Hat:enterprise_linux:3::desktop From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-nss` Red Hat:enterprise_linux:3::desktop From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-nss-devel` Red Hat:enterprise_linux:3::desktop From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey` Red Hat:enterprise_linux:3::es From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-chat` Red Hat:enterprise_linux:3::es From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-debuginfo` Red Hat:enterprise_linux:3::es From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-devel` Red Hat:enterprise_linux:3::es From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-dom-inspector` Red Hat:enterprise_linux:3::es From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-js-debugger` Red Hat:enterprise_linux:3::es From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-mail` Red Hat:enterprise_linux:3::es From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-nspr` Red Hat:enterprise_linux:3::es From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-nspr-devel` Red Hat:enterprise_linux:3::es From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-nss` Red Hat:enterprise_linux:3::es From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-nss-devel` Red Hat:enterprise_linux:3::es From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey` Red Hat:enterprise_linux:3::ws From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-chat` Red Hat:enterprise_linux:3::ws From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-debuginfo` Red Hat:enterprise_linux:3::ws From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-devel` Red Hat:enterprise_linux:3::ws From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-dom-inspector` Red Hat:enterprise_linux:3::ws From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-js-debugger` Red Hat:enterprise_linux:3::ws From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-mail` Red Hat:enterprise_linux:3::ws From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-nspr` Red Hat:enterprise_linux:3::ws From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-nspr-devel` Red Hat:enterprise_linux:3::ws From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-nss` Red Hat:enterprise_linux:3::ws From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey-nss-devel` Red Hat:enterprise_linux:3::ws From an advisory covering 5 CVEs	before 0:1.0.9-0.38.el3	0:1.0.9-0.38.el3
`seamonkey` Red Hat:enterprise_linux:4::as From an advisory covering 5 CVEs	before 0:1.0.9-43.el4_8	0:1.0.9-43.el4_8
`seamonkey-chat` Red Hat:enterprise_linux:4::as From an advisory covering 5 CVEs	before 0:1.0.9-43.el4_8	0:1.0.9-43.el4_8
`seamonkey-debuginfo` Red Hat:enterprise_linux:4::as From an advisory covering 5 CVEs	before 0:1.0.9-43.el4_8	0:1.0.9-43.el4_8
`seamonkey-devel` Red Hat:enterprise_linux:4::as From an advisory covering 5 CVEs	before 0:1.0.9-43.el4_8	0:1.0.9-43.el4_8
`seamonkey-dom-inspector` Red Hat:enterprise_linux:4::as From an advisory covering 5 CVEs	before 0:1.0.9-43.el4_8	0:1.0.9-43.el4_8
`seamonkey-js-debugger` Red Hat:enterprise_linux:4::as From an advisory covering 5 CVEs	before 0:1.0.9-43.el4_8	0:1.0.9-43.el4_8
`seamonkey-mail` Red Hat:enterprise_linux:4::as From an advisory covering 5 CVEs	before 0:1.0.9-43.el4_8	0:1.0.9-43.el4_8
`seamonkey` Red Hat:enterprise_linux:4::desktop From an advisory covering 5 CVEs	before 0:1.0.9-43.el4_8	0:1.0.9-43.el4_8
`seamonkey-chat` Red Hat:enterprise_linux:4::desktop From an advisory covering 5 CVEs	before 0:1.0.9-43.el4_8	0:1.0.9-43.el4_8
`seamonkey-debuginfo` Red Hat:enterprise_linux:4::desktop From an advisory covering 5 CVEs	before 0:1.0.9-43.el4_8	0:1.0.9-43.el4_8
`seamonkey-devel` Red Hat:enterprise_linux:4::desktop From an advisory covering 5 CVEs	before 0:1.0.9-43.el4_8	0:1.0.9-43.el4_8
`seamonkey-dom-inspector` Red Hat:enterprise_linux:4::desktop From an advisory covering 5 CVEs	before 0:1.0.9-43.el4_8	0:1.0.9-43.el4_8
`seamonkey-js-debugger` Red Hat:enterprise_linux:4::desktop From an advisory covering 5 CVEs	before 0:1.0.9-43.el4_8	0:1.0.9-43.el4_8
`seamonkey-mail` Red Hat:enterprise_linux:4::desktop From an advisory covering 5 CVEs	before 0:1.0.9-43.el4_8	0:1.0.9-43.el4_8
`seamonkey` Red Hat:enterprise_linux:4::es From an advisory covering 5 CVEs	before 0:1.0.9-43.el4_8	0:1.0.9-43.el4_8
`seamonkey-chat` Red Hat:enterprise_linux:4::es From an advisory covering 5 CVEs	before 0:1.0.9-43.el4_8	0:1.0.9-43.el4_8
`seamonkey-debuginfo` Red Hat:enterprise_linux:4::es From an advisory covering 5 CVEs	before 0:1.0.9-43.el4_8	0:1.0.9-43.el4_8
`seamonkey-devel` Red Hat:enterprise_linux:4::es From an advisory covering 5 CVEs	before 0:1.0.9-43.el4_8	0:1.0.9-43.el4_8
`seamonkey-dom-inspector` Red Hat:enterprise_linux:4::es From an advisory covering 5 CVEs	before 0:1.0.9-43.el4_8	0:1.0.9-43.el4_8
`seamonkey-js-debugger` Red Hat:enterprise_linux:4::es From an advisory covering 5 CVEs	before 0:1.0.9-43.el4_8	0:1.0.9-43.el4_8
`seamonkey-mail` Red Hat:enterprise_linux:4::es From an advisory covering 5 CVEs	before 0:1.0.9-43.el4_8	0:1.0.9-43.el4_8
`seamonkey` Red Hat:enterprise_linux:4::ws From an advisory covering 5 CVEs	before 0:1.0.9-43.el4_8	0:1.0.9-43.el4_8
`seamonkey-chat` Red Hat:enterprise_linux:4::ws From an advisory covering 5 CVEs	before 0:1.0.9-43.el4_8	0:1.0.9-43.el4_8
`seamonkey-debuginfo` Red Hat:enterprise_linux:4::ws From an advisory covering 5 CVEs	before 0:1.0.9-43.el4_8	0:1.0.9-43.el4_8
`seamonkey-devel` Red Hat:enterprise_linux:4::ws From an advisory covering 5 CVEs	before 0:1.0.9-43.el4_8	0:1.0.9-43.el4_8
`seamonkey-dom-inspector` Red Hat:enterprise_linux:4::ws From an advisory covering 5 CVEs	before 0:1.0.9-43.el4_8	0:1.0.9-43.el4_8
`seamonkey-js-debugger` Red Hat:enterprise_linux:4::ws From an advisory covering 5 CVEs	before 0:1.0.9-43.el4_8	0:1.0.9-43.el4_8
`seamonkey-mail` Red Hat:enterprise_linux:4::ws From an advisory covering 5 CVEs	before 0:1.0.9-43.el4_8	0:1.0.9-43.el4_8
`thunderbird` Red Hat:enterprise_linux:4::as From an advisory covering 9 CVEs	before 0:1.5.0.12-23.el4	0:1.5.0.12-23.el4
`thunderbird-debuginfo` Red Hat:enterprise_linux:4::as From an advisory covering 9 CVEs	before 0:1.5.0.12-23.el4	0:1.5.0.12-23.el4
`thunderbird` Red Hat:enterprise_linux:4::desktop From an advisory covering 9 CVEs	before 0:1.5.0.12-23.el4	0:1.5.0.12-23.el4
`thunderbird-debuginfo` Red Hat:enterprise_linux:4::desktop From an advisory covering 9 CVEs	before 0:1.5.0.12-23.el4	0:1.5.0.12-23.el4
`thunderbird` Red Hat:enterprise_linux:4::es From an advisory covering 9 CVEs	before 0:1.5.0.12-23.el4	0:1.5.0.12-23.el4
`thunderbird-debuginfo` Red Hat:enterprise_linux:4::es From an advisory covering 9 CVEs	before 0:1.5.0.12-23.el4	0:1.5.0.12-23.el4
`thunderbird` Red Hat:enterprise_linux:4::ws From an advisory covering 9 CVEs	before 0:1.5.0.12-23.el4	0:1.5.0.12-23.el4
`thunderbird-debuginfo` Red Hat:enterprise_linux:4::ws From an advisory covering 9 CVEs	before 0:1.5.0.12-23.el4	0:1.5.0.12-23.el4
`thunderbird` Red Hat:enterprise_linux:5::client From an advisory covering 11 CVEs	before 0:2.0.0.22-2.el5_3	0:2.0.0.22-2.el5_3
`thunderbird-debuginfo` Red Hat:enterprise_linux:5::client From an advisory covering 11 CVEs	before 0:2.0.0.22-2.el5_3	0:2.0.0.22-2.el5_3
`thunderbird` Red Hat:rhel_productivity:5 From an advisory covering 11 CVEs	before 0:2.0.0.22-2.el5_3	0:2.0.0.22-2.el5_3
`thunderbird-debuginfo` Red Hat:rhel_productivity:5 From an advisory covering 11 CVEs	before 0:2.0.0.22-2.el5_3	0:2.0.0.22-2.el5_3

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2009-1838 is a high vulnerability (CVSS 9.3) in Mozilla Firefox, published June 12, 2009. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.79%, the 92nd percentile. No source names a fixed version.

References

Show 114 moreShow less