CVE-2018-4190

HighCVSS 8.8/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.0 8.8/10CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-522

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://www.securitytracker.com/id/1041029Third Party Advisory, VDB Entry
https://security.gentoo.org/glsa/201808-04Third Party Advisory
https://support.apple.com/HT208848Vendor Advisory
https://support.apple.com/HT208850Vendor Advisory
https://support.apple.com/HT208852Vendor Advisory
https://support.apple.com/HT208853Vendor Advisory
https://support.apple.com/HT208854Vendor Advisory
https://usn.ubuntu.com/3687-1/Third Party Advisory
http://www.securitytracker.com/id/1041029Third Party Advisory, VDB Entry
https://security.gentoo.org/glsa/201808-04Third Party Advisory
https://support.apple.com/HT208848Vendor Advisory
https://support.apple.com/HT208850Vendor Advisory
https://support.apple.com/HT208852Vendor Advisory
https://support.apple.com/HT208853Vendor Advisory
https://support.apple.com/HT208854Vendor Advisory
https://usn.ubuntu.com/3687-1/Third Party Advisory

Timeline

Published: Jun 8, 2018
Last modified: Jun 17, 2026
NVD status: Modified

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