CVE-2018-4124 json
An issue was discovered in certain Apple products.
published 2018-04-03 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-15910
- cvss
- 9.8
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 5.9%
- EPSS 5.9% chance of exploitation in 30 days, percentile 93%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- apple iphone_os 11.2.6
- apple mac_os_x 10.13.3
- apple tvos 11.2.6
- apple watchos 4.2.3
Exploit prediction
5.85% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 9.0 | AV:N/AC:L/Au:N/C:P/I:P/A:C |
Classification
- Weakness
-
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
-
support.apple.com
/HT208534
vendor-advisory
-
support.apple.com
/HT208537
vendor-advisory
-
support.apple.com
/HT208535
vendor-advisory
-
support.apple.com
/HT208536
vendor-advisory
-
securitytracker.com
/id/1040396
vdb-entry, third-party-advisory
-
nakedsecurity.sophos.com
/2018/02/20/apple-fixes-that-1-character-to-crash-your-mac-and-iphone-bug/
third-party-advisory
Sources
- CVE List CVE-2018-4124
- NVD CVE-2018-4124
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.