CVE-2016-2820

Name: CVE-2016-2820
Creator: NVD / NIST
Published: 2016-04-30T17:59:15.773+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.41%

Last modified Jun 17, 2026

CVE-2016-2820 is a vulnerability of currently unknown severity. The Firefox Health Reports (aka FHR or about:healthreport) feature in Mozilla Firefox before 46.0 does not properly restrict the origin of events, which makes it easier for remote attackers to modify sharing preferences by leveraging access to the remote-report IFRAME element.. EPSS estimates a 1.41% chance of exploitation in the next 30 days.

Description

The Firefox Health Reports (aka FHR or about:healthreport) feature in Mozilla Firefox before 46.0 does not properly restrict the origin of events, which makes it easier for remote attackers to modify sharing preferences by leveraging access to the remote-report IFRAME element.

Metrics

EPSS Probability

1.41%

69.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-284

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	<= 45.0.2

References

Timeline

Published: Apr 30, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-2820?

How severe is CVE-2016-2820?

Severity scoring for CVE-2016-2820 is pending analysis. The EPSS model estimates a 1.41% probability of exploitation in the next 30 days.

How do I fix CVE-2016-2820?

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-2016-2820?

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

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Source: NVD / NIST