CVE-2007-3734

CVE-2007-3734 is a critical-severity vulnerability in Mozilla Firefox with a CVSS 2.0 base score of 9.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 2.0.0.5 and Thunderbird before 2.0.0.5 allow remote attackers to cause a denial of service (crash) via unspecified vectors that trigger memory corruption.

Frequently asked questions

What is CVE-2007-3734?
Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 2.0.0.5 and Thunderbird before 2.0.0.5 allow remote attackers to cause a denial of service (crash) via unspecified vectors that trigger memory corruption.
How severe is CVE-2007-3734?
CVE-2007-3734 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2007-3734 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-3734?
CVE-2007-3734 primarily affects Mozilla Firefox. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-3734?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2007-3734 published?
CVE-2007-3734 was published on 2007-07-18 and last updated on 2026-06-16.

References

Affected products (10)

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