What’s Vulnerable › Vulnerabilities

CVE-2006-0749

• Severity: critical (CVSS 9.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 10.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2006-04-14 · updated 2026-06-16
• Weakness: CWE-399

Description

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.

Affected products

• Mozilla Firefox: from 1.0 before 1.5 — fixed in 1.5
• Mozilla Suite: before 1.7.13 — fixed in 1.7.13
• Mozilla Seamonkey: before 1.0 — fixed in 1.0
• Mozilla Thunderbird: from 1.0 before 1.0.8 — fixed in 1.0.8

How to fix

Upgrade to a fixed version: Mozilla Firefox 1.5; Mozilla Suite 1.7.13; Mozilla Seamonkey 1.0; Mozilla Thunderbird 1.0.8. Check the vendor advisory for mitigations.

References

• http://lists.suse.com/archive/suse-security-announce/2006-Apr/0003.html
• http://secunia.com/advisories/19631
• http://secunia.com/advisories/19696
• http://secunia.com/advisories/19714
• http://secunia.com/advisories/19721
• http://secunia.com/advisories/19729
• http://secunia.com/advisories/19746
• http://secunia.com/advisories/19759
• http://secunia.com/advisories/19780
• http://secunia.com/advisories/19794

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