CVE-2018-4124

Name: CVE-2018-4124
Creator: NVD / NIST
Published: 2018-04-03T06:29:05.453+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 6.69%

Last modified Jun 17, 2026

CVE-2018-4124 is a vulnerability of currently unknown severity. An issue was discovered in certain Apple products. iOS before 11.2.6 is affected. EPSS estimates a 6.69% chance of exploitation in the next 30 days.

Description

An issue was discovered in certain Apple products. iOS before 11.2.6 is affected. macOS before 10.13.3 Supplemental Update is affected. tvOS before 11.2.6 is affected. watchOS before 4.2.3 is affected. The issue involves the "CoreText" component. It allows remote attackers to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact via a crafted string containing a certain Telugu character.

Metrics

EPSS Probability

6.69%

93.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Apple	Iphone Os	< 11.2.6
Apple	Mac Os X	< 10.13.3
Apple	Tvos	< 11.2.6
Apple	Watchos	< 4.2.3

References

http://www.securitytracker.com/id/1040396Third Party Advisory, VDB Entry
https://nakedsecurity.sophos.com/2018/02/20/apple-fixes-that-1-character-to-crash-your-mac-and-iphone-bug/Third Party Advisory
https://support.apple.com/HT208534Vendor Advisory
https://support.apple.com/HT208535Vendor Advisory
https://support.apple.com/HT208536Vendor Advisory
https://support.apple.com/HT208537Vendor Advisory
http://www.securitytracker.com/id/1040396Third Party Advisory, VDB Entry
https://nakedsecurity.sophos.com/2018/02/20/apple-fixes-that-1-character-to-crash-your-mac-and-iphone-bug/Third Party Advisory
https://support.apple.com/HT208534Vendor Advisory
https://support.apple.com/HT208535Vendor Advisory
https://support.apple.com/HT208536Vendor Advisory
https://support.apple.com/HT208537Vendor Advisory

Timeline

Published: Apr 3, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-4124?

How severe is CVE-2018-4124?

Severity scoring for CVE-2018-4124 is pending analysis. The EPSS model estimates a 6.69% probability of exploitation in the next 30 days.

How do I fix CVE-2018-4124?

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-2018-4124?

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

Scan your code now

Source: NVD / NIST