SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

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…

MEDIUM 4.3EPSS 1.46%

Does this matter?

Lower severity and a low EPSS score (1.46%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 3.0
4.3 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
EPSS
1.46% probability · 72th percentile
CISA KEV
Not listed
Weakness
CWE-200
Affected
mozilla/firefox
Source
security@mozilla.org

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.