CVE-2018-4121

high-risk

Published 2018-04-03

An issue was discovered in certain Apple products. iOS before 11.3 is affected. Safari before 11.1 is affected. iCloud before 7.4 on Windows is affected. iTunes before 12.7.4 on Windows is affected. tvOS before 11.3 is affected. watchOS before 4.3 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.

Do I need to act?

38.6% chance of exploitation in next 30 days

EPSS score — higher than 61% of all CVEs

Not on CISA KEV list

No confirmed active exploitation reported to CISA

1 public exploit available

44427

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 8.8/10 High

NETWORK / LOW complexity

Affected Products (6)

Safari

Iphone Os

Tvos

Watchos

Icloud

Itunes

Affected Vendors

Apple

References (20)

Third Party Advisory http://www.securitytracker.com/id/1040604

Exploit https://github.com/mwrlabs/CVE-2018-4121

Third Party Advisory https://security.gentoo.org/glsa/201808-04

Vendor Advisory https://support.apple.com/HT208693

Vendor Advisory https://support.apple.com/HT208694

Vendor Advisory https://support.apple.com/HT208695

Vendor Advisory https://support.apple.com/HT208696

Vendor Advisory https://support.apple.com/HT208697

Vendor Advisory https://support.apple.com/HT208698

Exploit https://www.exploit-db.com/exploits/44427/