Strix
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CVE-2016-2830

UnknownEPSS 1.47%

Last modified

CVE-2016-2830 is a vulnerability of currently unknown severity. Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 preserve the network connection used for favicon resource retrieval after the associated browser window is closed, which makes it easier for remote web servers to track users by observing network traffic from multiple IP addresses.. EPSS estimates a 1.47% chance of exploitation in the next 30 days.

Description

Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 preserve the network connection used for favicon resource retrieval after the associated browser window is closed, which makes it easier for remote web servers to track users by observing network traffic from multiple IP addresses.

Metrics

EPSS Probability
1.47%

70.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
MozillaFirefox<= 47.0.1
MozillaFirefox45.1.0
MozillaFirefox45.1.1
MozillaFirefox45.2.0
MozillaFirefox45.3.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2016-2830?
Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 preserve the network connection used for favicon resource retrieval after the associated browser window is closed, which makes it easier for remote web servers to track users by observing network traffic from multiple IP addresses.
How severe is CVE-2016-2830?
Severity scoring for CVE-2016-2830 is pending analysis. The EPSS model estimates a 1.47% probability of exploitation in the next 30 days.
How do I fix CVE-2016-2830?
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-2016-2830?

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

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Source: NVD / NIST