CVE-2014-1576

Name: CVE-2014-1576
Creator: NVD / NIST
Published: 2014-10-15T10:55:06.677+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 4.99%

Last modified Jun 17, 2026

CVE-2014-1576 is a vulnerability of currently unknown severity. Heap-based buffer overflow in the nsTransformedTextRun function in Mozilla Firefox before 33.0, Firefox ESR 31.x before 31.2, and Thunderbird 31.x before 31.2 allows remote attackers to execute arbitrary code via Cascading Style Sheets (CSS) token sequences that trigger changes to capitalization style.. EPSS estimates a 4.99% chance of exploitation in the next 30 days.

Description

Heap-based buffer overflow in the nsTransformedTextRun function in Mozilla Firefox before 33.0, Firefox ESR 31.x before 31.2, and Thunderbird 31.x before 31.2 allows remote attackers to execute arbitrary code via Cascading Style Sheets (CSS) token sequences that trigger changes to capitalization style.

Metrics

EPSS Probability

4.99%

91.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Mozilla	Thunderbird	31.0
Mozilla	Thunderbird	31.1.0
Mozilla	Firefox	31.0
Mozilla	Firefox	31.1.0
Mozilla	Firefox	<= 32.0
Mozilla	Firefox	30.0

References

Timeline

Published: Oct 15, 2014
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2014-1576?

How severe is CVE-2014-1576?

Severity scoring for CVE-2014-1576 is pending analysis. The EPSS model estimates a 4.99% probability of exploitation in the next 30 days.

How do I fix CVE-2014-1576?

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-2014-1576?

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

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Source: NVD / NIST