CVE-2018-4302

Name: CVE-2018-4302
Creator: NVD / NIST
Published: 2021-12-23T20:15:08.577+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.92%

Last modified Jun 17, 2026

CVE-2018-4302 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. A null pointer dereference was addressed with improved validation. This issue is fixed in macOS High Sierra 10.13, iCloud for Windows 7.0, watchOS 4, iOS 11, iTunes 12.7 for Windows. EPSS estimates a 0.92% chance of exploitation in the next 30 days.

Description

A null pointer dereference was addressed with improved validation. This issue is fixed in macOS High Sierra 10.13, iCloud for Windows 7.0, watchOS 4, iOS 11, iTunes 12.7 for Windows. Processing maliciously crafted XML may lead to an unexpected application termination or arbitrary code execution.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

0.92%

55.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-476

Affected Software

Vendor	Product	Versions
Apple	Icloud	<= 7.0
Apple	Itunes	< 12.7
Apple	Iphone Os	< 11
Apple	Mac Os X	< 10.13
Apple	Watchos	< 4

References

https://support.apple.com/en-us/HT208112Vendor Advisory
https://support.apple.com/en-us/HT208115Vendor Advisory
https://support.apple.com/en-us/HT208141Vendor Advisory
https://support.apple.com/en-us/HT208142Vendor Advisory
https://support.apple.com/en-us/HT208144Vendor Advisory
https://support.apple.com/en-us/HT208112Vendor Advisory
https://support.apple.com/en-us/HT208115Vendor Advisory
https://support.apple.com/en-us/HT208141Vendor Advisory
https://support.apple.com/en-us/HT208142Vendor Advisory
https://support.apple.com/en-us/HT208144Vendor Advisory

Timeline

Published: Dec 23, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-4302?

How severe is CVE-2018-4302?

CVE-2018-4302 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.92% probability of exploitation in the next 30 days.

How do I fix CVE-2018-4302?

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-2018-4302?

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

Scan your code now

Source: NVD / NIST