CVE-2018-4371 json
An out-of-bounds read was addressed with improved input validation.
published 2019-04-03 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-16157
- cvss
- 7.8
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 60%
- public exploits
- 0
- none known
Summary
An out-of-bounds read was addressed with improved input validation. This issue affected versions prior to iOS 12.1, macOS Mojave 10.14.1, tvOS 12.1, watchOS 5.1.
Patch / fix
- apple iphone_os 12.1
- apple mac_os_x 10.14.1
- apple tvos 12.1
- apple watchos 5.1
Exploit prediction
0.93% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 7.8 | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
Affected products
- n/a iOS, macOS, tvOS, watchOS
Classification
- Weakness
-
- CWE-125 Out-of-bounds Read
References
-
support.apple.com
/kb/HT209193
vendor-advisory
-
support.apple.com
/kb/HT209192
vendor-advisory
-
support.apple.com
/kb/HT209195
vendor-advisory
-
support.apple.com
/kb/HT209194
vendor-advisory
Sources
- CVE List CVE-2018-4371
- NVD CVE-2018-4371
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.