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CVE-2011-3670

Mozilla Firefox before 3.6.26 and 4.x through 6.0, Thunderbird before 3.1.18 and 5.0 through 6.0,...

5.0 Medium

Mozilla Firefox before 3.6.26 and 4.x through 6.0, Thunderbird before 3.1.18 and 5.0 through 6.0, and SeaMonkey before 2.4 do not properly enforce the IPv6 literal address syntax, which allows remote attackers to obtain sensitive information by making XMLHttpRequest calls through a proxy and reading the error messages.

Exploit likelihood

2.14%Unchanged since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 5.0

Mozilla Firefox before 3.6.26 and 4.x through 6.0, Thunderbird before 3.1.18 and 5.0 through 6.0, and SeaMonkey before 2.4 do not properly enforce the IPv6 literal address syntax, which allows remote attackers to obtain sensitive information by making XMLHttpRequest calls through a proxy and reading the error messages.

Record
CVE-2011-3670
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness
CWE-200
Updated
2026-11-02
CVE List No score

Mozilla Firefox before 3.6.26 and 4.x through 6.0, Thunderbird before 3.1.18 and 5.0 through 6.0, and SeaMonkey before 2.4 do not properly enforce the IPv6 literal address syntax, which allows remote attackers to obtain sensitive information by making XMLHttpRequest calls through a proxy and reading the error messages.

Record
CVE-2011-3670
Updated
2026-11-02
EUVDEUVD-2011-3629 No score

Mozilla Firefox before 3.6.26 and 4.x through 6.0, Thunderbird before 3.1.18 and 5.0 through 6.0, and SeaMonkey before 2.4 do not properly enforce the IPv6 literal address syntax, which allows remote attackers to obtain sensitive information by making XMLHttpRequest calls through a proxy and reading the error messages.

Record
EUVD-2011-3629
Updated
2026-11-03
GitHub AdvisoriesGHSA-4x38-mjhp-qwrf No score

Mozilla Firefox before 3.6.26 and 4.x through 6.0, Thunderbird before 3.1.18 and 5.0 through 6.0,...

Mozilla Firefox before 3.6.26 and 4.x through 6.0, Thunderbird before 3.1.18 and 5.0 through 6.0, and SeaMonkey before 2.4 do not properly enforce the IPv6 literal address syntax, which allows remote attackers to obtain sensitive information by making XMLHttpRequest calls through a proxy and reading the error messages.

Record
GHSA-4x38-mjhp-qwrf
Weakness
CWE-200
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
iceweasel
Debian:6.0
From an advisory covering 4 CVEs
 before 3.5.16-12, plus listed versions
3.5.16-103.5.16-10~bpo50+13.5.16-113.5.16-11~bpo50+13.5.16-4
Show 9 moreShow less
3.5.16-53.5.16-5~bpo50+13.5.16-63.5.16-6~bpo50+13.5.16-73.5.16-7~bpo50+13.5.16-83.5.16-8~bpo50+13.5.16-9
3.5.16-12
xulrunner
Debian:5.0
From an advisory covering 4 CVEs
 before 1.9.0.19-16, plus listed versions
1.9.0.10-11.9.0.11-0lenny11.9.0.11-11.9.0.12-0lenny11.9.0.12-1
Show 29 moreShow less
1.9.0.13-0lenny11.9.0.13-11.9.0.14-0lenny11.9.0.14-11.9.0.15-0lenny11.9.0.16-11.9.0.18-11.9.0.19-11.9.0.19-111.9.0.19-121.9.0.19-131.9.0.19-141.9.0.19-151.9.0.19-21.9.0.19-31.9.0.19-41.9.0.19-51.9.0.19-61.9.0.19-71.9.0.19-81.9.0.19-91.9.0.5-11.9.0.6-11.9.0.7-0lenny11.9.0.7-0lenny21.9.0.7-11.9.0.8-11.9.0.9-0lenny21.9.0.9-1
1.9.0.19-16
iceape
Debian:6.0
From an advisory covering 4 CVEs
 before 2.0.11-10, plus listed versions
2.0.11-22.0.11-32.0.11-42.0.11-52.0.11-62.0.11-72.0.11-82.0.11-9
2.0.11-10
icedove
Debian:6.0
From an advisory covering 4 CVEs
 before 3.0.11-1+squeeze7, plus listed versions
3.0.11-13.0.11-1+squeeze13.0.11-1+squeeze23.0.11-1+squeeze33.0.11-1+squeeze43.0.11-1+squeeze53.0.11-1+squeeze6
3.0.11-1+squeeze7
firefox
Red Hat:enterprise_linux:4::as
From an advisory covering 5 CVEs
 before 0:3.6.26-2.el4
0:3.6.26-2.el4
firefox-debuginfo
Red Hat:enterprise_linux:4::as
From an advisory covering 5 CVEs
 before 0:3.6.26-2.el4
0:3.6.26-2.el4
firefox
Red Hat:enterprise_linux:4::desktop
From an advisory covering 5 CVEs
 before 0:3.6.26-2.el4
0:3.6.26-2.el4
firefox-debuginfo
Red Hat:enterprise_linux:4::desktop
From an advisory covering 5 CVEs
 before 0:3.6.26-2.el4
0:3.6.26-2.el4
firefox
Red Hat:enterprise_linux:4::es
From an advisory covering 5 CVEs
 before 0:3.6.26-2.el4
0:3.6.26-2.el4
firefox-debuginfo
Red Hat:enterprise_linux:4::es
From an advisory covering 5 CVEs
 before 0:3.6.26-2.el4
0:3.6.26-2.el4
Show 80 moreShow less
Affected packages
PackageAffectedFixed
firefox
Red Hat:enterprise_linux:4::ws
From an advisory covering 5 CVEs
 before 0:3.6.26-2.el4
0:3.6.26-2.el4
firefox-debuginfo
Red Hat:enterprise_linux:4::ws
From an advisory covering 5 CVEs
 before 0:3.6.26-2.el4
0:3.6.26-2.el4
firefox
Red Hat:enterprise_linux:5::client
From an advisory covering 5 CVEs
 before 0:3.6.26-1.el5_7
0:3.6.26-1.el5_7
firefox-debuginfo
Red Hat:enterprise_linux:5::client
From an advisory covering 5 CVEs
 before 0:3.6.26-1.el5_7
0:3.6.26-1.el5_7
xulrunner
Red Hat:enterprise_linux:5::client
From an advisory covering 5 CVEs
 before 0:1.9.2.26-1.el5_7
0:1.9.2.26-1.el5_7
xulrunner-debuginfo
Red Hat:enterprise_linux:5::client
From an advisory covering 5 CVEs
 before 0:1.9.2.26-1.el5_7
0:1.9.2.26-1.el5_7
xulrunner
Red Hat:enterprise_linux:5::client_workstation
From an advisory covering 5 CVEs
 before 0:1.9.2.26-1.el5_7
0:1.9.2.26-1.el5_7
xulrunner-debuginfo
Red Hat:enterprise_linux:5::client_workstation
From an advisory covering 5 CVEs
 before 0:1.9.2.26-1.el5_7
0:1.9.2.26-1.el5_7
xulrunner-devel
Red Hat:enterprise_linux:5::client_workstation
From an advisory covering 5 CVEs
 before 0:1.9.2.26-1.el5_7
0:1.9.2.26-1.el5_7
firefox
Red Hat:enterprise_linux:5::server
From an advisory covering 5 CVEs
 before 0:3.6.26-1.el5_7
0:3.6.26-1.el5_7
firefox-debuginfo
Red Hat:enterprise_linux:5::server
From an advisory covering 5 CVEs
 before 0:3.6.26-1.el5_7
0:3.6.26-1.el5_7
xulrunner
Red Hat:enterprise_linux:5::server
From an advisory covering 5 CVEs
 before 0:1.9.2.26-1.el5_7
0:1.9.2.26-1.el5_7
xulrunner-debuginfo
Red Hat:enterprise_linux:5::server
From an advisory covering 5 CVEs
 before 0:1.9.2.26-1.el5_7
0:1.9.2.26-1.el5_7
xulrunner-devel
Red Hat:enterprise_linux:5::server
From an advisory covering 5 CVEs
 before 0:1.9.2.26-1.el5_7
0:1.9.2.26-1.el5_7
firefox
Red Hat:enterprise_linux:6::client
From an advisory covering 5 CVEs
 before 0:3.6.26-1.el6_2
0:3.6.26-1.el6_2
firefox-debuginfo
Red Hat:enterprise_linux:6::client
From an advisory covering 5 CVEs
 before 0:3.6.26-1.el6_2
0:3.6.26-1.el6_2
xulrunner
Red Hat:enterprise_linux:6::client
From an advisory covering 5 CVEs
 before 0:1.9.2.26-1.el6_2
0:1.9.2.26-1.el6_2
xulrunner-debuginfo
Red Hat:enterprise_linux:6::client
From an advisory covering 5 CVEs
 before 0:1.9.2.26-1.el6_2
0:1.9.2.26-1.el6_2
xulrunner-devel
Red Hat:enterprise_linux:6::client
From an advisory covering 5 CVEs
 before 0:1.9.2.26-1.el6_2
0:1.9.2.26-1.el6_2
firefox
Red Hat:enterprise_linux:6::computenode
From an advisory covering 5 CVEs
 before 0:3.6.26-1.el6_2
0:3.6.26-1.el6_2
firefox-debuginfo
Red Hat:enterprise_linux:6::computenode
From an advisory covering 5 CVEs
 before 0:3.6.26-1.el6_2
0:3.6.26-1.el6_2
xulrunner
Red Hat:enterprise_linux:6::computenode
From an advisory covering 5 CVEs
 before 0:1.9.2.26-1.el6_2
0:1.9.2.26-1.el6_2
xulrunner-debuginfo
Red Hat:enterprise_linux:6::computenode
From an advisory covering 5 CVEs
 before 0:1.9.2.26-1.el6_2
0:1.9.2.26-1.el6_2
xulrunner-devel
Red Hat:enterprise_linux:6::computenode
From an advisory covering 5 CVEs
 before 0:1.9.2.26-1.el6_2
0:1.9.2.26-1.el6_2
firefox
Red Hat:enterprise_linux:6::server
From an advisory covering 5 CVEs
 before 0:3.6.26-1.el6_2
0:3.6.26-1.el6_2
firefox-debuginfo
Red Hat:enterprise_linux:6::server
From an advisory covering 5 CVEs
 before 0:3.6.26-1.el6_2
0:3.6.26-1.el6_2
xulrunner
Red Hat:enterprise_linux:6::server
From an advisory covering 5 CVEs
 before 0:1.9.2.26-1.el6_2
0:1.9.2.26-1.el6_2
xulrunner-debuginfo
Red Hat:enterprise_linux:6::server
From an advisory covering 5 CVEs
 before 0:1.9.2.26-1.el6_2
0:1.9.2.26-1.el6_2
xulrunner-devel
Red Hat:enterprise_linux:6::server
From an advisory covering 5 CVEs
 before 0:1.9.2.26-1.el6_2
0:1.9.2.26-1.el6_2
firefox
Red Hat:enterprise_linux:6::workstation
From an advisory covering 5 CVEs
 before 0:3.6.26-1.el6_2
0:3.6.26-1.el6_2
firefox-debuginfo
Red Hat:enterprise_linux:6::workstation
From an advisory covering 5 CVEs
 before 0:3.6.26-1.el6_2
0:3.6.26-1.el6_2
xulrunner
Red Hat:enterprise_linux:6::workstation
From an advisory covering 5 CVEs
 before 0:1.9.2.26-1.el6_2
0:1.9.2.26-1.el6_2
xulrunner-debuginfo
Red Hat:enterprise_linux:6::workstation
From an advisory covering 5 CVEs
 before 0:1.9.2.26-1.el6_2
0:1.9.2.26-1.el6_2
xulrunner-devel
Red Hat:enterprise_linux:6::workstation
From an advisory covering 5 CVEs
 before 0:1.9.2.26-1.el6_2
0:1.9.2.26-1.el6_2
thunderbird
Red Hat:enterprise_linux:6::client
From an advisory covering 4 CVEs
 before 0:3.1.18-1.el6_2
0:3.1.18-1.el6_2
thunderbird-debuginfo
Red Hat:enterprise_linux:6::client
From an advisory covering 4 CVEs
 before 0:3.1.18-1.el6_2
0:3.1.18-1.el6_2
thunderbird
Red Hat:enterprise_linux:6::server
From an advisory covering 4 CVEs
 before 0:3.1.18-1.el6_2
0:3.1.18-1.el6_2
thunderbird-debuginfo
Red Hat:enterprise_linux:6::server
From an advisory covering 4 CVEs
 before 0:3.1.18-1.el6_2
0:3.1.18-1.el6_2
thunderbird
Red Hat:enterprise_linux:6::workstation
From an advisory covering 4 CVEs
 before 0:3.1.18-1.el6_2
0:3.1.18-1.el6_2
thunderbird-debuginfo
Red Hat:enterprise_linux:6::workstation
From an advisory covering 4 CVEs
 before 0:3.1.18-1.el6_2
0:3.1.18-1.el6_2
seamonkey
Red Hat:enterprise_linux:4::as
From an advisory covering 2 CVEs
 before 0:1.0.9-78.el4
0:1.0.9-78.el4
seamonkey-chat
Red Hat:enterprise_linux:4::as
From an advisory covering 2 CVEs
 before 0:1.0.9-78.el4
0:1.0.9-78.el4
seamonkey-debuginfo
Red Hat:enterprise_linux:4::as
From an advisory covering 2 CVEs
 before 0:1.0.9-78.el4
0:1.0.9-78.el4
seamonkey-devel
Red Hat:enterprise_linux:4::as
From an advisory covering 2 CVEs
 before 0:1.0.9-78.el4
0:1.0.9-78.el4
seamonkey-dom-inspector
Red Hat:enterprise_linux:4::as
From an advisory covering 2 CVEs
 before 0:1.0.9-78.el4
0:1.0.9-78.el4
seamonkey-js-debugger
Red Hat:enterprise_linux:4::as
From an advisory covering 2 CVEs
 before 0:1.0.9-78.el4
0:1.0.9-78.el4
seamonkey-mail
Red Hat:enterprise_linux:4::as
From an advisory covering 2 CVEs
 before 0:1.0.9-78.el4
0:1.0.9-78.el4
seamonkey
Red Hat:enterprise_linux:4::desktop
From an advisory covering 2 CVEs
 before 0:1.0.9-78.el4
0:1.0.9-78.el4
seamonkey-chat
Red Hat:enterprise_linux:4::desktop
From an advisory covering 2 CVEs
 before 0:1.0.9-78.el4
0:1.0.9-78.el4
seamonkey-debuginfo
Red Hat:enterprise_linux:4::desktop
From an advisory covering 2 CVEs
 before 0:1.0.9-78.el4
0:1.0.9-78.el4
seamonkey-devel
Red Hat:enterprise_linux:4::desktop
From an advisory covering 2 CVEs
 before 0:1.0.9-78.el4
0:1.0.9-78.el4
seamonkey-dom-inspector
Red Hat:enterprise_linux:4::desktop
From an advisory covering 2 CVEs
 before 0:1.0.9-78.el4
0:1.0.9-78.el4
seamonkey-js-debugger
Red Hat:enterprise_linux:4::desktop
From an advisory covering 2 CVEs
 before 0:1.0.9-78.el4
0:1.0.9-78.el4
seamonkey-mail
Red Hat:enterprise_linux:4::desktop
From an advisory covering 2 CVEs
 before 0:1.0.9-78.el4
0:1.0.9-78.el4
seamonkey
Red Hat:enterprise_linux:4::es
From an advisory covering 2 CVEs
 before 0:1.0.9-78.el4
0:1.0.9-78.el4
seamonkey-chat
Red Hat:enterprise_linux:4::es
From an advisory covering 2 CVEs
 before 0:1.0.9-78.el4
0:1.0.9-78.el4
seamonkey-debuginfo
Red Hat:enterprise_linux:4::es
From an advisory covering 2 CVEs
 before 0:1.0.9-78.el4
0:1.0.9-78.el4
seamonkey-devel
Red Hat:enterprise_linux:4::es
From an advisory covering 2 CVEs
 before 0:1.0.9-78.el4
0:1.0.9-78.el4
seamonkey-dom-inspector
Red Hat:enterprise_linux:4::es
From an advisory covering 2 CVEs
 before 0:1.0.9-78.el4
0:1.0.9-78.el4
seamonkey-js-debugger
Red Hat:enterprise_linux:4::es
From an advisory covering 2 CVEs
 before 0:1.0.9-78.el4
0:1.0.9-78.el4
seamonkey-mail
Red Hat:enterprise_linux:4::es
From an advisory covering 2 CVEs
 before 0:1.0.9-78.el4
0:1.0.9-78.el4
seamonkey
Red Hat:enterprise_linux:4::ws
From an advisory covering 2 CVEs
 before 0:1.0.9-78.el4
0:1.0.9-78.el4
seamonkey-chat
Red Hat:enterprise_linux:4::ws
From an advisory covering 2 CVEs
 before 0:1.0.9-78.el4
0:1.0.9-78.el4
seamonkey-debuginfo
Red Hat:enterprise_linux:4::ws
From an advisory covering 2 CVEs
 before 0:1.0.9-78.el4
0:1.0.9-78.el4
seamonkey-devel
Red Hat:enterprise_linux:4::ws
From an advisory covering 2 CVEs
 before 0:1.0.9-78.el4
0:1.0.9-78.el4
seamonkey-dom-inspector
Red Hat:enterprise_linux:4::ws
From an advisory covering 2 CVEs
 before 0:1.0.9-78.el4
0:1.0.9-78.el4
seamonkey-js-debugger
Red Hat:enterprise_linux:4::ws
From an advisory covering 2 CVEs
 before 0:1.0.9-78.el4
0:1.0.9-78.el4
seamonkey-mail
Red Hat:enterprise_linux:4::ws
From an advisory covering 2 CVEs
 before 0:1.0.9-78.el4
0:1.0.9-78.el4
thunderbird
Red Hat:enterprise_linux:4::as
From an advisory covering 2 CVEs
 before 0:1.5.0.12-46.el4
0:1.5.0.12-46.el4
thunderbird-debuginfo
Red Hat:enterprise_linux:4::as
From an advisory covering 2 CVEs
 before 0:1.5.0.12-46.el4
0:1.5.0.12-46.el4
thunderbird
Red Hat:enterprise_linux:4::desktop
From an advisory covering 2 CVEs
 before 0:1.5.0.12-46.el4
0:1.5.0.12-46.el4
thunderbird-debuginfo
Red Hat:enterprise_linux:4::desktop
From an advisory covering 2 CVEs
 before 0:1.5.0.12-46.el4
0:1.5.0.12-46.el4
thunderbird
Red Hat:enterprise_linux:4::es
From an advisory covering 2 CVEs
 before 0:1.5.0.12-46.el4
0:1.5.0.12-46.el4
thunderbird-debuginfo
Red Hat:enterprise_linux:4::es
From an advisory covering 2 CVEs
 before 0:1.5.0.12-46.el4
0:1.5.0.12-46.el4
thunderbird
Red Hat:enterprise_linux:4::ws
From an advisory covering 2 CVEs
 before 0:1.5.0.12-46.el4
0:1.5.0.12-46.el4
thunderbird-debuginfo
Red Hat:enterprise_linux:4::ws
From an advisory covering 2 CVEs
 before 0:1.5.0.12-46.el4
0:1.5.0.12-46.el4
thunderbird
Red Hat:enterprise_linux:5::client
From an advisory covering 2 CVEs
 before 0:2.0.0.24-28.el5_7
0:2.0.0.24-28.el5_7
thunderbird-debuginfo
Red Hat:enterprise_linux:5::client
From an advisory covering 2 CVEs
 before 0:2.0.0.24-28.el5_7
0:2.0.0.24-28.el5_7
thunderbird
Red Hat:rhel_productivity:5
From an advisory covering 2 CVEs
 before 0:2.0.0.24-28.el5_7
0:2.0.0.24-28.el5_7
thunderbird-debuginfo
Red Hat:rhel_productivity:5
From an advisory covering 2 CVEs
 before 0:2.0.0.24-28.el5_7
0:2.0.0.24-28.el5_7

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

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

In short

CVE-2011-3670 is a medium vulnerability (CVSS 5.0) in Mozilla Firefox, published February 1, 2012. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.14%, the 82nd percentile. No source names a fixed version.

References

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