CVE-2015-4522

Name: CVE-2015-4522
Creator: NVD / NIST
Published: 2015-09-24T04:59:21.13+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.50%

Last modified Jun 17, 2026

CVE-2015-4522 is a vulnerability of currently unknown severity. The nsUnicodeToUTF8::GetMaxLength function in Mozilla Firefox before 41.0 and Firefox ESR 38.x before 38.3 might allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly have unspecified other impact via unknown vectors, related to an "overflow.". EPSS estimates a 3.50% chance of exploitation in the next 30 days.

Description

The nsUnicodeToUTF8::GetMaxLength function in Mozilla Firefox before 41.0 and Firefox ESR 38.x before 38.3 might allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly have unspecified other impact via unknown vectors, related to an "overflow."

Metrics

EPSS Probability

3.50%

87.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

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	38.1.1
Mozilla	Firefox	38.2.0
Mozilla	Firefox	38.2.1
Mozilla	Firefox	<= 40.0.3

References

Timeline

Published: Sep 24, 2015
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-4522?

How severe is CVE-2015-4522?

Severity scoring for CVE-2015-4522 is pending analysis. The EPSS model estimates a 3.50% probability of exploitation in the next 30 days.

How do I fix CVE-2015-4522?

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-2015-4522?

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

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Source: NVD / NIST