CVE-2007-3657

CVE-2007-3657 is a medium-severity vulnerability in Mozilla Firefox with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

Mozilla Firefox 2.0.0.4 allows remote attackers to cause a denial of service by opening multiple tabs in a popup window. NOTE: this issue has been disputed by third party researchers, stating that "this does not crash on me, and I can't see a likely mechanism of action that would lead to a DoS condition.

Frequently asked questions

What is CVE-2007-3657?
Mozilla Firefox 2.0.0.4 allows remote attackers to cause a denial of service by opening multiple tabs in a popup window. NOTE: this issue has been disputed by third party researchers, stating that "this does not crash on me, and I can't see a likely mechanism of action that would lead to a DoS condition.
How severe is CVE-2007-3657?
CVE-2007-3657 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2007-3657 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-3657?
CVE-2007-3657 affects Mozilla Firefox. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2007-3657?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-3657 published?
CVE-2007-3657 was published on 2007-07-10 and last updated on 2026-06-16.

References

Affected products (1)

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