CVE-2018-4190

high-risk
Published 2018-06-08

An issue was discovered in certain Apple products. iOS before 11.4 is affected. Safari before 11.1.1 is affected. iCloud before 7.5 on Windows is affected. iTunes before 12.7.5 on Windows is affected. tvOS before 11.4 is affected. The issue involves the "WebKit" component. It allows remote attackers to obtain sensitive credential information that is transmitted during a CSS mask-image fetch.

Do I need to act?

~
2.8% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
NETWORK / LOW complexity

Affected Products (8)

Affected Vendors

Apple Canonical

References (16)

Third Party Advisory http://www.securitytracker.com/id/1041029
Third Party Advisory https://security.gentoo.org/glsa/201808-04
Vendor Advisory https://support.apple.com/HT208848
Vendor Advisory https://support.apple.com/HT208850
Vendor Advisory https://support.apple.com/HT208852
Vendor Advisory https://support.apple.com/HT208853
Vendor Advisory https://support.apple.com/HT208854
Third Party Advisory https://usn.ubuntu.com/3687-1/
Third Party Advisory http://www.securitytracker.com/id/1041029
Third Party Advisory https://security.gentoo.org/glsa/201808-04
Vendor Advisory https://support.apple.com/HT208848
Vendor Advisory https://support.apple.com/HT208850
Vendor Advisory https://support.apple.com/HT208852
Vendor Advisory https://support.apple.com/HT208853
Vendor Advisory https://support.apple.com/HT208854
Third Party Advisory https://usn.ubuntu.com/3687-1/
50
/ 100
high-risk
Severity 30/34 · Critical
Exploitability 6/34 · Minimal
Exposure 14/34 · Moderate