CVE-2018-4221

Description

An issue was discovered in certain Apple products. iOS before 11.4 is affected. macOS before 10.13.5 is affected. The issue involves the "Security" component. It allows web sites to track users by leveraging the transmission of S/MIME client certificates.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.58%
Vendor Advisory apple.com Vendor Advisory apple.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securitytracker.com/id/1041027 vdb entry third party advisory
http://www.securityfocus.com/bid/104897 vdb entry third party advisory
https://support.apple.com/HT208848 vendor advisory
https://support.apple.com/HT208849 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-4221?
CVE-2018-4221 has been scored as a high severity vulnerability.
How to fix CVE-2018-4221?
To fix CVE-2018-4221, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-4221 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2018-4221 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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