CVE-2014-1540

Name: CVE-2014-1540
Creator: NVD / NIST
Published: 2014-06-11T10:57:17.953+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.81%

Last modified Jun 17, 2026

CVE-2014-1540 is a vulnerability of currently unknown severity. Use-after-free vulnerability in the nsEventListenerManager::CompileEventHandlerInternal function in the Event Listener Manager in Mozilla Firefox before 30.0 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via crafted web content.. EPSS estimates a 3.81% chance of exploitation in the next 30 days.

Description

Use-after-free vulnerability in the nsEventListenerManager::CompileEventHandlerInternal function in the Event Listener Manager in Mozilla Firefox before 30.0 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via crafted web content.

Metrics

EPSS Probability

3.81%

88.7th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	<= 29.0.1

References

Timeline

Published: Jun 11, 2014
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2014-1540?

How severe is CVE-2014-1540?

Severity scoring for CVE-2014-1540 is pending analysis. The EPSS model estimates a 3.81% probability of exploitation in the next 30 days.

How do I fix CVE-2014-1540?

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-2014-1540?

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

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Source: NVD / NIST