CVE-2011-3665

Mozilla Firefox 4.x through 8.0, Thunderbird 5.0 through 8.0, and SeaMonkey before 2.6 allow...

7.5 High

Mozilla Firefox 4.x through 8.0, Thunderbird 5.0 through 8.0, and SeaMonkey before 2.6 allow remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via an Ogg VIDEO element that is not properly handled after scaling.

Exploit likelihood

2.63%Down 1.2 points since Feb 4, 2022

What each source reports

NVD Score used 7.5

Record: CVE-2011-3665
CVSS 2.0: 7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness: CWE-399
Updated: 2026-11-02

CVE List No score

Record: CVE-2011-3665
Updated: 2026-11-02

EUVDEUVD-2011-3624 No score

Record: EUVD-2011-3624
Updated: 2026-11-03

GitHub AdvisoriesGHSA-x7h5-4q34-2r6v No score

Mozilla Firefox 4.x through 8.0, Thunderbird 5.0 through 8.0, and SeaMonkey before 2.6 allow...

Record: GHSA-x7h5-4q34-2r6v
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD

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

In short

CVE-2011-3665 is a high vulnerability (CVSS 7.5) in Mozilla Firefox, published December 21, 2011. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.63%, the 85th percentile. No source names a fixed version.

References

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