CVE-2009-2470

Mozilla Firefox before 3.0.12, and 3.5.x before 3.5.2, allows remote SOCKS5 proxy servers to...

5.0 Medium

Mozilla Firefox before 3.0.12, and 3.5.x before 3.5.2, allows remote SOCKS5 proxy servers to cause a denial of service (data stream corruption) via a long domain name in a reply.

Exploit likelihood

1.99%Down 0.7 points since Feb 4, 2022

What each source reports

NVD Score used 5.0

Mozilla Firefox before 3.0.12, and 3.5.x before 3.5.2, allows remote SOCKS5 proxy servers to cause a denial of service (data stream corruption) via a long domain name in a reply.

Record: CVE-2009-2470
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness: CWE-20
Updated: 2026-11-02

CVE List No score

Mozilla Firefox before 3.0.12, and 3.5.x before 3.5.2, allows remote SOCKS5 proxy servers to cause a denial of service (data stream corruption) via a long domain name in a reply.

Record: CVE-2009-2470
Updated: 2026-11-02

EUVDEUVD-2009-2465 No score

Mozilla Firefox before 3.0.12, and 3.5.x before 3.5.2, allows remote SOCKS5 proxy servers to cause a denial of service (data stream corruption) via a long domain name in a reply.

Record: EUVD-2009-2465
Updated: 2026-11-03

GitHub AdvisoriesGHSA-gwmw-74gj-55qx No score

Mozilla Firefox before 3.0.12, and 3.5.x before 3.5.2, allows remote SOCKS5 proxy servers to...

Mozilla Firefox before 3.0.12, and 3.5.x before 3.5.2, allows remote SOCKS5 proxy servers to cause a denial of service (data stream corruption) via a long domain name in a reply.

Record: GHSA-gwmw-74gj-55qx
Weakness: CWE-20
Updated: 2026-11-02

OSVopenSUSE-SU-2024:10071-1 No score

MozillaFirefox-50.1.0-1.1 on GA media

These are all security issues fixed in the MozillaFirefox-50.1.0-1.1 package on the GA media of openSUSE Tumbleweed.

Record: openSUSE-SU-2024:10071-1
Updated: 2026-11-02

OSVopenSUSE-SU-2024:14572-1 No score

firefox-esr-128.5.1-1.1 on GA media

These are all security issues fixed in the firefox-esr-128.5.1-1.1 package on the GA media of openSUSE Tumbleweed.

Record: openSUSE-SU-2024:14572-1
Updated: 2026-11-02

Affected products

mozilla firefox

Affected packages

Affected packages
Package	Affected	Fixed
`xulrunner` Debian:5.0 From an advisory covering 9 CVEs	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 From an advisory covering 11 CVEs	before 0:3.0.12-1.el4	0:3.0.12-1.el4
`firefox-debuginfo` Red Hat:enterprise_linux:4::as From an advisory covering 11 CVEs	before 0:3.0.12-1.el4	0:3.0.12-1.el4
`firefox` Red Hat:enterprise_linux:4::desktop From an advisory covering 11 CVEs	before 0:3.0.12-1.el4	0:3.0.12-1.el4
`firefox-debuginfo` Red Hat:enterprise_linux:4::desktop From an advisory covering 11 CVEs	before 0:3.0.12-1.el4	0:3.0.12-1.el4
`firefox` Red Hat:enterprise_linux:4::es From an advisory covering 11 CVEs	before 0:3.0.12-1.el4	0:3.0.12-1.el4
`firefox-debuginfo` Red Hat:enterprise_linux:4::es From an advisory covering 11 CVEs	before 0:3.0.12-1.el4	0:3.0.12-1.el4
`firefox` Red Hat:enterprise_linux:4::ws From an advisory covering 11 CVEs	before 0:3.0.12-1.el4	0:3.0.12-1.el4
`firefox-debuginfo` Red Hat:enterprise_linux:4::ws From an advisory covering 11 CVEs	before 0:3.0.12-1.el4	0:3.0.12-1.el4
`xulrunner` Red Hat:enterprise_linux:5::client_workstation From an advisory covering 11 CVEs	before 0:1.9.0.12-1.el5_3	0:1.9.0.12-1.el5_3

Show 99 moreShow less

Affected packages
Package	Affected	Fixed
`xulrunner-debuginfo` Red Hat:enterprise_linux:5::client_workstation From an advisory covering 11 CVEs	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 From an advisory covering 11 CVEs	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 From an advisory covering 11 CVEs	before 0:1.9.0.12-1.el5_3	0:1.9.0.12-1.el5_3
`firefox` Red Hat:enterprise_linux:5::client From an advisory covering 11 CVEs	before 0:3.0.12-1.el5_3	0:3.0.12-1.el5_3
`firefox-debuginfo` Red Hat:enterprise_linux:5::client From an advisory covering 11 CVEs	before 0:3.0.12-1.el5_3	0:3.0.12-1.el5_3
`xulrunner` Red Hat:enterprise_linux:5::client From an advisory covering 11 CVEs	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 From an advisory covering 11 CVEs	before 0:1.9.0.12-1.el5_3	0:1.9.0.12-1.el5_3
`firefox` Red Hat:enterprise_linux:5::server From an advisory covering 11 CVEs	before 0:3.0.12-1.el5_3	0:3.0.12-1.el5_3
`firefox-debuginfo` Red Hat:enterprise_linux:5::server From an advisory covering 11 CVEs	before 0:3.0.12-1.el5_3	0:3.0.12-1.el5_3
`xulrunner` Red Hat:enterprise_linux:5::server From an advisory covering 11 CVEs	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 From an advisory covering 11 CVEs	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 From an advisory covering 11 CVEs	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 From an advisory covering 11 CVEs	before 0:1.9.0.12-1.el5_3	0:1.9.0.12-1.el5_3
`seamonkey` Red Hat:enterprise_linux:3::as From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-chat` Red Hat:enterprise_linux:3::as From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-debuginfo` Red Hat:enterprise_linux:3::as From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-devel` Red Hat:enterprise_linux:3::as From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-dom-inspector` Red Hat:enterprise_linux:3::as From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-js-debugger` Red Hat:enterprise_linux:3::as From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-mail` Red Hat:enterprise_linux:3::as From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-nspr` Red Hat:enterprise_linux:3::as From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-nspr-devel` Red Hat:enterprise_linux:3::as From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-nss` Red Hat:enterprise_linux:3::as From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-nss-devel` Red Hat:enterprise_linux:3::as From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey` Red Hat:enterprise_linux:3::desktop From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-chat` Red Hat:enterprise_linux:3::desktop From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-debuginfo` Red Hat:enterprise_linux:3::desktop From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-devel` Red Hat:enterprise_linux:3::desktop From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-dom-inspector` Red Hat:enterprise_linux:3::desktop From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-js-debugger` Red Hat:enterprise_linux:3::desktop From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-mail` Red Hat:enterprise_linux:3::desktop From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-nspr` Red Hat:enterprise_linux:3::desktop From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-nspr-devel` Red Hat:enterprise_linux:3::desktop From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-nss` Red Hat:enterprise_linux:3::desktop From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-nss-devel` Red Hat:enterprise_linux:3::desktop From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey` Red Hat:enterprise_linux:3::es From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-chat` Red Hat:enterprise_linux:3::es From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-debuginfo` Red Hat:enterprise_linux:3::es From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-devel` Red Hat:enterprise_linux:3::es From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-dom-inspector` Red Hat:enterprise_linux:3::es From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-js-debugger` Red Hat:enterprise_linux:3::es From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-mail` Red Hat:enterprise_linux:3::es From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-nspr` Red Hat:enterprise_linux:3::es From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-nspr-devel` Red Hat:enterprise_linux:3::es From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-nss` Red Hat:enterprise_linux:3::es From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-nss-devel` Red Hat:enterprise_linux:3::es From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey` Red Hat:enterprise_linux:3::ws From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-chat` Red Hat:enterprise_linux:3::ws From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-debuginfo` Red Hat:enterprise_linux:3::ws From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-devel` Red Hat:enterprise_linux:3::ws From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-dom-inspector` Red Hat:enterprise_linux:3::ws From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-js-debugger` Red Hat:enterprise_linux:3::ws From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-mail` Red Hat:enterprise_linux:3::ws From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-nspr` Red Hat:enterprise_linux:3::ws From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-nspr-devel` Red Hat:enterprise_linux:3::ws From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-nss` Red Hat:enterprise_linux:3::ws From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey-nss-devel` Red Hat:enterprise_linux:3::ws From an advisory covering 4 CVEs	before 0:1.0.9-0.40.el3	0:1.0.9-0.40.el3
`seamonkey` Red Hat:enterprise_linux:4::as From an advisory covering 4 CVEs	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-chat` Red Hat:enterprise_linux:4::as From an advisory covering 4 CVEs	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-debuginfo` Red Hat:enterprise_linux:4::as From an advisory covering 4 CVEs	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-devel` Red Hat:enterprise_linux:4::as From an advisory covering 4 CVEs	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-dom-inspector` Red Hat:enterprise_linux:4::as From an advisory covering 4 CVEs	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-js-debugger` Red Hat:enterprise_linux:4::as From an advisory covering 4 CVEs	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-mail` Red Hat:enterprise_linux:4::as From an advisory covering 4 CVEs	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey` Red Hat:enterprise_linux:4::desktop From an advisory covering 4 CVEs	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-chat` Red Hat:enterprise_linux:4::desktop From an advisory covering 4 CVEs	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-debuginfo` Red Hat:enterprise_linux:4::desktop From an advisory covering 4 CVEs	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-devel` Red Hat:enterprise_linux:4::desktop From an advisory covering 4 CVEs	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-dom-inspector` Red Hat:enterprise_linux:4::desktop From an advisory covering 4 CVEs	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-js-debugger` Red Hat:enterprise_linux:4::desktop From an advisory covering 4 CVEs	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-mail` Red Hat:enterprise_linux:4::desktop From an advisory covering 4 CVEs	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey` Red Hat:enterprise_linux:4::es From an advisory covering 4 CVEs	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-chat` Red Hat:enterprise_linux:4::es From an advisory covering 4 CVEs	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-debuginfo` Red Hat:enterprise_linux:4::es From an advisory covering 4 CVEs	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-devel` Red Hat:enterprise_linux:4::es From an advisory covering 4 CVEs	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-dom-inspector` Red Hat:enterprise_linux:4::es From an advisory covering 4 CVEs	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-js-debugger` Red Hat:enterprise_linux:4::es From an advisory covering 4 CVEs	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-mail` Red Hat:enterprise_linux:4::es From an advisory covering 4 CVEs	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey` Red Hat:enterprise_linux:4::ws From an advisory covering 4 CVEs	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-chat` Red Hat:enterprise_linux:4::ws From an advisory covering 4 CVEs	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-debuginfo` Red Hat:enterprise_linux:4::ws From an advisory covering 4 CVEs	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-devel` Red Hat:enterprise_linux:4::ws From an advisory covering 4 CVEs	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-dom-inspector` Red Hat:enterprise_linux:4::ws From an advisory covering 4 CVEs	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-js-debugger` Red Hat:enterprise_linux:4::ws From an advisory covering 4 CVEs	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`seamonkey-mail` Red Hat:enterprise_linux:4::ws From an advisory covering 4 CVEs	before 0:1.0.9-45.el4_8	0:1.0.9-45.el4_8
`thunderbird` Red Hat:enterprise_linux:5::client From an advisory covering 19 CVEs	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 From an advisory covering 19 CVEs	before 0:2.0.0.24-2.el5_4	0:2.0.0.24-2.el5_4
`thunderbird` Red Hat:rhel_productivity:5 From an advisory covering 19 CVEs	before 0:2.0.0.24-2.el5_4	0:2.0.0.24-2.el5_4
`thunderbird-debuginfo` Red Hat:rhel_productivity:5 From an advisory covering 19 CVEs	before 0:2.0.0.24-2.el5_4	0:2.0.0.24-2.el5_4
`thunderbird` Red Hat:enterprise_linux:4::as From an advisory covering 19 CVEs	before 0:1.5.0.12-25.el4	0:1.5.0.12-25.el4
`thunderbird-debuginfo` Red Hat:enterprise_linux:4::as From an advisory covering 19 CVEs	before 0:1.5.0.12-25.el4	0:1.5.0.12-25.el4
`thunderbird` Red Hat:enterprise_linux:4::desktop From an advisory covering 19 CVEs	before 0:1.5.0.12-25.el4	0:1.5.0.12-25.el4
`thunderbird-debuginfo` Red Hat:enterprise_linux:4::desktop From an advisory covering 19 CVEs	before 0:1.5.0.12-25.el4	0:1.5.0.12-25.el4
`thunderbird` Red Hat:enterprise_linux:4::es From an advisory covering 19 CVEs	before 0:1.5.0.12-25.el4	0:1.5.0.12-25.el4
`thunderbird-debuginfo` Red Hat:enterprise_linux:4::es From an advisory covering 19 CVEs	before 0:1.5.0.12-25.el4	0:1.5.0.12-25.el4
`thunderbird` Red Hat:enterprise_linux:4::ws From an advisory covering 19 CVEs	before 0:1.5.0.12-25.el4	0:1.5.0.12-25.el4
`thunderbird-debuginfo` Red Hat:enterprise_linux:4::ws From an advisory covering 19 CVEs	before 0:1.5.0.12-25.el4	0:1.5.0.12-25.el4
`MozillaFirefox` openSUSE:Tumbleweed From an advisory covering 899 CVEs	before 50.1.0-1.1	50.1.0-1.1
`firefox-esr` openSUSE:Tumbleweed From an advisory covering 1860 CVEs	before 128.5.1-1.1	128.5.1-1.1

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-2009-2470 is a medium vulnerability (CVSS 5.0) in Mozilla Firefox, published July 23, 2009. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.99%, the 80th percentile. No source names a fixed version.

References

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