CVE-2018-4218

Name: CVE-2018-4218
Creator: NVD / NIST
Published: 2018-06-08T18:29:01.29+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 9.08%

Last modified Jun 17, 2026

CVE-2018-4218 is a vulnerability of currently unknown severity. An issue was discovered in certain Apple products. iOS before 11.4 is affected. EPSS estimates a 9.08% chance of exploitation in the next 30 days.

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. watchOS before 4.3.1 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 that triggers an @generatorState use-after-free.

Metrics

EPSS Probability

9.08%

94.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-416

Affected Software

Vendor	Product	Versions
Apple	Safari	< 11.1.1
Apple	Iphone Os	< 11.4
Apple	Tvos	< 11.4
Apple	Watchos	< 4.3.1
Apple	Icloud	< 7.5
Apple	Itunes	< 12.7.5
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	17.10
Canonical	Ubuntu Linux	18.04

References

http://www.securitytracker.com/id/1041029Third Party Advisory, VDB Entry
https://bugs.chromium.org/p/project-zero/issues/detail?id=1553Exploit, Issue Tracking, Third Party Advisory
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/HT208851Vendor 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
https://www.exploit-db.com/exploits/44861/Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1041029Third Party Advisory, VDB Entry
https://bugs.chromium.org/p/project-zero/issues/detail?id=1553Exploit, Issue Tracking, Third Party Advisory
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/HT208851Vendor 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
https://www.exploit-db.com/exploits/44861/Third Party Advisory, VDB Entry

Timeline

Published: Jun 8, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-4218?

How severe is CVE-2018-4218?

Severity scoring for CVE-2018-4218 is pending analysis. The EPSS model estimates a 9.08% probability of exploitation in the next 30 days.

How do I fix CVE-2018-4218?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-4218?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST