CVE-2009-2462

The browser engine in Mozilla Firefox before 3.0.12 and Thunderbird allows remote attackers to...

10.0 HighFix available

The browser engine in Mozilla Firefox before 3.0.12 and Thunderbird allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via vectors related to (1) the frame chain and synchronous events, (2) a SetMayHaveFrame assertion and nsCSSFrameConstructor::CreateFloatingLetterFrame, (3) nsCSSFrameConstructor::ConstructFrame, (4) the child list and initial reflow, (5) GetLastSpecialSibling, (6) nsFrameManager::GetPrimaryFrameFor and MathML, (7) nsFrame::GetBoxAscent, (8) nsCSSFrameConstructor::AdjustParentFrame, (9) nsDOMOfflineResourceList, and (10) nsContentUtils::ComparePosition.

Exploit likelihood

5.41%Down 2.8 points since Feb 4, 2022

What each source reports

NVD Score used 10.0

Record: CVE-2009-2462
CVSS 2.0: 10.0 HighAV:N/AC:L/Au:N/C:C/I:C/A:C
Weakness: CWE-399
Updated: 2026-11-02

CVE List No score

Record: CVE-2009-2462
Updated: 2026-11-02

EUVDEUVD-2009-2457 No score

Record: EUVD-2009-2457
Updated: 2026-11-03

GitHub AdvisoriesGHSA-gphm-8f5h-pv33 No score

The browser engine in Mozilla Firefox before 3.0.12 and Thunderbird allows remote attackers to...

Record: GHSA-gphm-8f5h-pv33
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`xulrunner` Debian:5.0	before 1.9.0.12-0lenny1, plus listed versions 1.9.0.10-11.9.0.11-0lenny11.9.0.11-11.9.0.5-11.9.0.6-1 Show 6 moreShow less 1.9.0.7-0lenny11.9.0.7-0lenny21.9.0.7-11.9.0.8-11.9.0.9-0lenny21.9.0.9-1	1.9.0.12-0lenny1
`firefox` Red Hat:enterprise_linux:4::as	before 0:3.0.12-1.el4	0:3.0.12-1.el4
`firefox-debuginfo` Red Hat:enterprise_linux:4::as	before 0:3.0.12-1.el4	0:3.0.12-1.el4
`firefox` Red Hat:enterprise_linux:4::desktop	before 0:3.0.12-1.el4	0:3.0.12-1.el4
`firefox-debuginfo` Red Hat:enterprise_linux:4::desktop	before 0:3.0.12-1.el4	0:3.0.12-1.el4
`firefox` Red Hat:enterprise_linux:4::es	before 0:3.0.12-1.el4	0:3.0.12-1.el4
`firefox-debuginfo` Red Hat:enterprise_linux:4::es	before 0:3.0.12-1.el4	0:3.0.12-1.el4
`firefox` Red Hat:enterprise_linux:4::ws	before 0:3.0.12-1.el4	0:3.0.12-1.el4
`firefox-debuginfo` Red Hat:enterprise_linux:4::ws	before 0:3.0.12-1.el4	0:3.0.12-1.el4
`xulrunner` Red Hat:enterprise_linux:5::client_workstation	before 0:1.9.0.12-1.el5_3	0:1.9.0.12-1.el5_3

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Affected packages
Package	Affected	Fixed
`xulrunner-debuginfo` Red Hat:enterprise_linux:5::client_workstation	before 0:1.9.0.12-1.el5_3	0:1.9.0.12-1.el5_3
`xulrunner-devel` Red Hat:enterprise_linux:5::client_workstation	before 0:1.9.0.12-1.el5_3	0:1.9.0.12-1.el5_3
`xulrunner-devel-unstable` Red Hat:enterprise_linux:5::client_workstation	before 0:1.9.0.12-1.el5_3	0:1.9.0.12-1.el5_3
`firefox` Red Hat:enterprise_linux:5::client	before 0:3.0.12-1.el5_3	0:3.0.12-1.el5_3
`firefox-debuginfo` Red Hat:enterprise_linux:5::client	before 0:3.0.12-1.el5_3	0:3.0.12-1.el5_3
`xulrunner` Red Hat:enterprise_linux:5::client	before 0:1.9.0.12-1.el5_3	0:1.9.0.12-1.el5_3
`xulrunner-debuginfo` Red Hat:enterprise_linux:5::client	before 0:1.9.0.12-1.el5_3	0:1.9.0.12-1.el5_3
`firefox` Red Hat:enterprise_linux:5::server	before 0:3.0.12-1.el5_3	0:3.0.12-1.el5_3
`firefox-debuginfo` Red Hat:enterprise_linux:5::server	before 0:3.0.12-1.el5_3	0:3.0.12-1.el5_3
`xulrunner` Red Hat:enterprise_linux:5::server	before 0:1.9.0.12-1.el5_3	0:1.9.0.12-1.el5_3
`xulrunner-debuginfo` Red Hat:enterprise_linux:5::server	before 0:1.9.0.12-1.el5_3	0:1.9.0.12-1.el5_3
`xulrunner-devel` Red Hat:enterprise_linux:5::server	before 0:1.9.0.12-1.el5_3	0:1.9.0.12-1.el5_3
`xulrunner-devel-unstable` Red Hat:enterprise_linux:5::server	before 0:1.9.0.12-1.el5_3	0:1.9.0.12-1.el5_3
`seamonkey` Red Hat:enterprise_linux:3::as	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-chat` Red Hat:enterprise_linux:3::as	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-debuginfo` Red Hat:enterprise_linux:3::as	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-devel` Red Hat:enterprise_linux:3::as	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-dom-inspector` Red Hat:enterprise_linux:3::as	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-js-debugger` Red Hat:enterprise_linux:3::as	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-mail` Red Hat:enterprise_linux:3::as	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-nspr` Red Hat:enterprise_linux:3::as	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-nspr-devel` Red Hat:enterprise_linux:3::as	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-nss` Red Hat:enterprise_linux:3::as	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-nss-devel` Red Hat:enterprise_linux:3::as	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey` Red Hat:enterprise_linux:3::desktop	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-chat` Red Hat:enterprise_linux:3::desktop	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-debuginfo` Red Hat:enterprise_linux:3::desktop	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-devel` Red Hat:enterprise_linux:3::desktop	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-dom-inspector` Red Hat:enterprise_linux:3::desktop	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-js-debugger` Red Hat:enterprise_linux:3::desktop	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-mail` Red Hat:enterprise_linux:3::desktop	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-nspr` Red Hat:enterprise_linux:3::desktop	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-nspr-devel` Red Hat:enterprise_linux:3::desktop	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-nss` Red Hat:enterprise_linux:3::desktop	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-nss-devel` Red Hat:enterprise_linux:3::desktop	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey` Red Hat:enterprise_linux:3::es	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-chat` Red Hat:enterprise_linux:3::es	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-debuginfo` Red Hat:enterprise_linux:3::es	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-devel` Red Hat:enterprise_linux:3::es	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-dom-inspector` Red Hat:enterprise_linux:3::es	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-js-debugger` Red Hat:enterprise_linux:3::es	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-mail` Red Hat:enterprise_linux:3::es	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-nspr` Red Hat:enterprise_linux:3::es	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-nspr-devel` Red Hat:enterprise_linux:3::es	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-nss` Red Hat:enterprise_linux:3::es	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-nss-devel` Red Hat:enterprise_linux:3::es	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey` Red Hat:enterprise_linux:3::ws	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-chat` Red Hat:enterprise_linux:3::ws	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-debuginfo` Red Hat:enterprise_linux:3::ws	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-devel` Red Hat:enterprise_linux:3::ws	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-dom-inspector` Red Hat:enterprise_linux:3::ws	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-js-debugger` Red Hat:enterprise_linux:3::ws	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-mail` Red Hat:enterprise_linux:3::ws	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-nspr` Red Hat:enterprise_linux:3::ws	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-nspr-devel` Red Hat:enterprise_linux:3::ws	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-nss` Red Hat:enterprise_linux:3::ws	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-nss-devel` Red Hat:enterprise_linux:3::ws	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey` Red Hat:enterprise_linux:4::as	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-chat` Red Hat:enterprise_linux:4::as	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-debuginfo` Red Hat:enterprise_linux:4::as	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-devel` Red Hat:enterprise_linux:4::as	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-dom-inspector` Red Hat:enterprise_linux:4::as	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-js-debugger` Red Hat:enterprise_linux:4::as	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-mail` Red Hat:enterprise_linux:4::as	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey` Red Hat:enterprise_linux:4::desktop	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-chat` Red Hat:enterprise_linux:4::desktop	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-debuginfo` Red Hat:enterprise_linux:4::desktop	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-devel` Red Hat:enterprise_linux:4::desktop	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-dom-inspector` Red Hat:enterprise_linux:4::desktop	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-js-debugger` Red Hat:enterprise_linux:4::desktop	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-mail` Red Hat:enterprise_linux:4::desktop	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey` Red Hat:enterprise_linux:4::es	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-chat` Red Hat:enterprise_linux:4::es	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-debuginfo` Red Hat:enterprise_linux:4::es	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-devel` Red Hat:enterprise_linux:4::es	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-dom-inspector` Red Hat:enterprise_linux:4::es	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-js-debugger` Red Hat:enterprise_linux:4::es	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-mail` Red Hat:enterprise_linux:4::es	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey` Red Hat:enterprise_linux:4::ws	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-chat` Red Hat:enterprise_linux:4::ws	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-debuginfo` Red Hat:enterprise_linux:4::ws	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-devel` Red Hat:enterprise_linux:4::ws	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-dom-inspector` Red Hat:enterprise_linux:4::ws	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-js-debugger` Red Hat:enterprise_linux:4::ws	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-mail` Red Hat:enterprise_linux:4::ws	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`thunderbird` Red Hat:enterprise_linux:5::client	before 0:2.0.0.24-2.el5_4	0:2.0.0.24-2.el5_4
`thunderbird-debuginfo` Red Hat:enterprise_linux:5::client	before 0:2.0.0.24-2.el5_4	0:2.0.0.24-2.el5_4
`thunderbird` Red Hat:rhel_productivity:5	before 0:2.0.0.24-2.el5_4	0:2.0.0.24-2.el5_4
`thunderbird-debuginfo` Red Hat:rhel_productivity:5	before 0:2.0.0.24-2.el5_4	0:2.0.0.24-2.el5_4
`thunderbird` Red Hat:enterprise_linux:4::as	before 0:1.5.0.12-25.el4	0:1.5.0.12-25.el4
`thunderbird-debuginfo` Red Hat:enterprise_linux:4::as	before 0:1.5.0.12-25.el4	0:1.5.0.12-25.el4
`thunderbird` Red Hat:enterprise_linux:4::desktop	before 0:1.5.0.12-25.el4	0:1.5.0.12-25.el4
`thunderbird-debuginfo` Red Hat:enterprise_linux:4::desktop	before 0:1.5.0.12-25.el4	0:1.5.0.12-25.el4
`thunderbird` Red Hat:enterprise_linux:4::es	before 0:1.5.0.12-25.el4	0:1.5.0.12-25.el4
`thunderbird-debuginfo` Red Hat:enterprise_linux:4::es	before 0:1.5.0.12-25.el4	0:1.5.0.12-25.el4
`thunderbird` Red Hat:enterprise_linux:4::ws	before 0:1.5.0.12-25.el4	0:1.5.0.12-25.el4
`thunderbird-debuginfo` Red Hat:enterprise_linux:4::ws	before 0:1.5.0.12-25.el4	0:1.5.0.12-25.el4

History

History
Recorded	Changed	Sources
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-2009-2462 is a high vulnerability (CVSS 10.0) in Mozilla Firefox, published July 22, 2009. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 5.41%, the 92nd percentile. Fixed in xulrunner 1.9.0.12-0lenny1.

References

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