CVE-2011-3658

Name: CVE-2011-3658
Creator: NVD / NIST
Published: 2011-12-21T04:02:00.897+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 69.88%

Last modified Jun 16, 2026

CVE-2011-3658 is a vulnerability of currently unknown severity. The SVG implementation in Mozilla Firefox 8.0, Thunderbird 8.0, and SeaMonkey 2.5 does not properly interact with DOMAttrModified event handlers, which allows remote attackers to cause a denial of service (out-of-bounds memory access) or possibly have unspecified other impact via vectors involving removal of SVG elements.. EPSS estimates a 69.88% chance of exploitation in the next 30 days.

Description

The SVG implementation in Mozilla Firefox 8.0, Thunderbird 8.0, and SeaMonkey 2.5 does not properly interact with DOMAttrModified event handlers, which allows remote attackers to cause a denial of service (out-of-bounds memory access) or possibly have unspecified other impact via vectors involving removal of SVG elements.

Metrics

EPSS Probability

69.88%

99.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-399

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	8.0
Mozilla	Seamonkey	2.5
Mozilla	Thunderbird	8.0

References

Timeline

Published: Dec 21, 2011
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2011-3658?

How severe is CVE-2011-3658?

Severity scoring for CVE-2011-3658 is pending analysis. The EPSS model estimates a 69.88% probability of exploitation in the next 30 days.

How do I fix CVE-2011-3658?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2011-3658?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST