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CVE-2006-0749

nsHTMLContentSink.cpp in Mozilla Firefox and Thunderbird 1.x before 1.5 and 1.0.x before 1.0.8,...

9.3 HighFix available

nsHTMLContentSink.cpp in Mozilla Firefox and Thunderbird 1.x before 1.5 and 1.0.x before 1.0.8, Mozilla Suite before 1.7.13, and SeaMonkey before 1.0 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unknown vectors involving a "particular sequence of HTML tags" that leads to memory corruption.

Exploit likelihood

10.5%Up 3.9 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 9.3

nsHTMLContentSink.cpp in Mozilla Firefox and Thunderbird 1.x before 1.5 and 1.0.x before 1.0.8, Mozilla Suite before 1.7.13, and SeaMonkey before 1.0 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unknown vectors involving a "particular sequence of HTML tags" that leads to memory corruption.

Record
CVE-2006-0749
CVSS 2.0
9.3 HighAV:N/AC:M/Au:N/C:C/I:C/A:C
Weakness
CWE-399
Updated
2026-11-02
CVE List No score

nsHTMLContentSink.cpp in Mozilla Firefox and Thunderbird 1.x before 1.5 and 1.0.x before 1.0.8, Mozilla Suite before 1.7.13, and SeaMonkey before 1.0 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unknown vectors involving a "particular sequence of HTML tags" that leads to memory corruption.

Record
CVE-2006-0749
Updated
2026-11-02
EUVDEUVD-2006-0755 No score

nsHTMLContentSink.cpp in Mozilla Firefox and Thunderbird 1.x before 1.5 and 1.0.x before 1.0.8, Mozilla Suite before 1.7.13, and SeaMonkey before 1.0 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unknown vectors involving a "particular sequence of HTML tags" that leads to memory corruption.

Record
EUVD-2006-0755
Updated
2026-11-03
GitHub AdvisoriesGHSA-pwcc-x4h8-g74h No score

nsHTMLContentSink.cpp in Mozilla Firefox and Thunderbird 1.x before 1.5 and 1.0.x before 1.0.8,...

nsHTMLContentSink.cpp in Mozilla Firefox and Thunderbird 1.x before 1.5 and 1.0.x before 1.0.8, Mozilla Suite before 1.7.13, and SeaMonkey before 1.0 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unknown vectors involving a "particular sequence of HTML tags" that leads to memory corruption.

Record
GHSA-pwcc-x4h8-g74h
Updated
2026-11-02
OSV No score

nsHTMLContentSink.cpp in Mozilla Firefox and Thunderbird 1.x before 1.5 and 1.0.x before 1.0.8, Mozilla Suite before 1.7.13, and SeaMonkey before 1.0 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unknown vectors involving a "particular sequence of HTML tags" that leads to memory corruption.

Record
CVE-2006-0749
Updated
2026-11-02
OSVDEBIAN-CVE-2006-0749 No score

nsHTMLContentSink.cpp in Mozilla Firefox and Thunderbird 1.x before 1.5 and 1.0.x before 1.0.8, Mozilla Suite before 1.7.13, and SeaMonkey before 1.0 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unknown vectors involving a "particular sequence of HTML tags" that leads to memory corruption.

Record
DEBIAN-CVE-2006-0749
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
thunderbird
Debian:12
 before 1.5.0.2-1
1.5.0.2-1
thunderbird
Debian:13
 before 1.5.0.2-1
1.5.0.2-1
thunderbird
Debian:14
 before 1.5.0.2-1
1.5.0.2-1
mozilla-firefox
Debian:3.1
From an advisory covering 23 CVEs
 before 1.0.4-2sarge6, plus listed versions
1.0.4-21.0.4-2sarge11.0.4-2sarge21.0.4-2sarge31.0.4-2sarge41.0.4-2sarge5
1.0.4-2sarge6
mozilla
Debian:3.1
From an advisory covering 31 CVEs
 before 2:1.7.8-1sarge5, plus listed versions
2:1.7.8-12:1.7.8-1sarge12:1.7.8-1sarge22:1.7.8-1sarge3
2:1.7.8-1sarge5
mozilla-thunderbird
Debian:3.1
From an advisory covering 28 CVEs
 before 1.0.2-2.sarge1.0.8, plus listed versions
1.0.2-21.0.2-2.sarge1.0.61.0.2-2.sarge1.0.7
1.0.2-2.sarge1.0.8
firefox
Red Hat:enterprise_linux:4::as
From an advisory covering 19 CVEs
 before 0:1.0.8-1.4.1
0:1.0.8-1.4.1
firefox-debuginfo
Red Hat:enterprise_linux:4::as
From an advisory covering 19 CVEs
 before 0:1.0.8-1.4.1
0:1.0.8-1.4.1
firefox
Red Hat:enterprise_linux:4::desktop
From an advisory covering 19 CVEs
 before 0:1.0.8-1.4.1
0:1.0.8-1.4.1
firefox-debuginfo
Red Hat:enterprise_linux:4::desktop
From an advisory covering 19 CVEs
 before 0:1.0.8-1.4.1
0:1.0.8-1.4.1
Show 24 moreShow less
Affected packages
PackageAffectedFixed
firefox
Red Hat:enterprise_linux:4::es
From an advisory covering 19 CVEs
 before 0:1.0.8-1.4.1
0:1.0.8-1.4.1
firefox-debuginfo
Red Hat:enterprise_linux:4::es
From an advisory covering 19 CVEs
 before 0:1.0.8-1.4.1
0:1.0.8-1.4.1
firefox
Red Hat:enterprise_linux:4::ws
From an advisory covering 19 CVEs
 before 0:1.0.8-1.4.1
0:1.0.8-1.4.1
firefox-debuginfo
Red Hat:enterprise_linux:4::ws
From an advisory covering 19 CVEs
 before 0:1.0.8-1.4.1
0:1.0.8-1.4.1
devhelp
Red Hat:enterprise_linux:4::as
From an advisory covering 20 CVEs
 before 0:0.9.2-2.4.8
0:0.9.2-2.4.8
devhelp-debuginfo
Red Hat:enterprise_linux:4::as
From an advisory covering 20 CVEs
 before 0:0.9.2-2.4.8
0:0.9.2-2.4.8
devhelp-devel
Red Hat:enterprise_linux:4::as
From an advisory covering 20 CVEs
 before 0:0.9.2-2.4.8
0:0.9.2-2.4.8
devhelp
Red Hat:enterprise_linux:4::desktop
From an advisory covering 20 CVEs
 before 0:0.9.2-2.4.8
0:0.9.2-2.4.8
devhelp-debuginfo
Red Hat:enterprise_linux:4::desktop
From an advisory covering 20 CVEs
 before 0:0.9.2-2.4.8
0:0.9.2-2.4.8
devhelp-devel
Red Hat:enterprise_linux:4::desktop
From an advisory covering 20 CVEs
 before 0:0.9.2-2.4.8
0:0.9.2-2.4.8
devhelp
Red Hat:enterprise_linux:4::es
From an advisory covering 20 CVEs
 before 0:0.9.2-2.4.8
0:0.9.2-2.4.8
devhelp-debuginfo
Red Hat:enterprise_linux:4::es
From an advisory covering 20 CVEs
 before 0:0.9.2-2.4.8
0:0.9.2-2.4.8
devhelp-devel
Red Hat:enterprise_linux:4::es
From an advisory covering 20 CVEs
 before 0:0.9.2-2.4.8
0:0.9.2-2.4.8
devhelp
Red Hat:enterprise_linux:4::ws
From an advisory covering 20 CVEs
 before 0:0.9.2-2.4.8
0:0.9.2-2.4.8
devhelp-debuginfo
Red Hat:enterprise_linux:4::ws
From an advisory covering 20 CVEs
 before 0:0.9.2-2.4.8
0:0.9.2-2.4.8
devhelp-devel
Red Hat:enterprise_linux:4::ws
From an advisory covering 20 CVEs
 before 0:0.9.2-2.4.8
0:0.9.2-2.4.8
thunderbird
Red Hat:enterprise_linux:4::as
From an advisory covering 21 CVEs
 before 0:1.0.8-1.4.1
0:1.0.8-1.4.1
thunderbird-debuginfo
Red Hat:enterprise_linux:4::as
From an advisory covering 21 CVEs
 before 0:1.0.8-1.4.1
0:1.0.8-1.4.1
thunderbird
Red Hat:enterprise_linux:4::desktop
From an advisory covering 21 CVEs
 before 0:1.0.8-1.4.1
0:1.0.8-1.4.1
thunderbird-debuginfo
Red Hat:enterprise_linux:4::desktop
From an advisory covering 21 CVEs
 before 0:1.0.8-1.4.1
0:1.0.8-1.4.1
thunderbird
Red Hat:enterprise_linux:4::es
From an advisory covering 21 CVEs
 before 0:1.0.8-1.4.1
0:1.0.8-1.4.1
thunderbird-debuginfo
Red Hat:enterprise_linux:4::es
From an advisory covering 21 CVEs
 before 0:1.0.8-1.4.1
0:1.0.8-1.4.1
thunderbird
Red Hat:enterprise_linux:4::ws
From an advisory covering 21 CVEs
 before 0:1.0.8-1.4.1
0:1.0.8-1.4.1
thunderbird-debuginfo
Red Hat:enterprise_linux:4::ws
From an advisory covering 21 CVEs
 before 0:1.0.8-1.4.1
0:1.0.8-1.4.1

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-2006-0749 is a high vulnerability (CVSS 9.3) in Mozilla Firefox, published April 14, 2006. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 10.5%, the 95th percentile. Fixed in thunderbird 1.5.0.2-1.

References

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Left out here: 14 references. The JSON record has them.

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