CVE-2015-4497

Name: CVE-2015-4497
Creator: NVD / NIST
Published: 2015-08-29T19:59:00.123+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 8.01%

Last modified Jun 17, 2026

CVE-2015-4497 is a vulnerability of currently unknown severity. Use-after-free vulnerability in the CanvasRenderingContext2D implementation in Mozilla Firefox before 40.0.3 and Firefox ESR 38.x before 38.2.1 allows remote attackers to execute arbitrary code by leveraging improper interaction between resize events and changes to Cascading Style Sheets (CSS) token sequences for a CANVAS element.. EPSS estimates a 8.01% chance of exploitation in the next 30 days.

Description

Use-after-free vulnerability in the CanvasRenderingContext2D implementation in Mozilla Firefox before 40.0.3 and Firefox ESR 38.x before 38.2.1 allows remote attackers to execute arbitrary code by leveraging improper interaction between resize events and changes to Cascading Style Sheets (CSS) token sequences for a CANVAS element.

Metrics

EPSS Probability

8.01%

94.0th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	38.0
Mozilla	Firefox	38.0.1
Mozilla	Firefox	38.0.5
Mozilla	Firefox	38.1.0
Mozilla	Firefox	38.2.0
Mozilla	Firefox	40.0.2

References

Timeline

Published: Aug 29, 2015
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-4497?

How severe is CVE-2015-4497?

Severity scoring for CVE-2015-4497 is pending analysis. The EPSS model estimates a 8.01% probability of exploitation in the next 30 days.

How do I fix CVE-2015-4497?

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-2015-4497?

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

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Source: NVD / NIST