CVE-2018-4431 json
A memory initialization issue was addressed with improved memory handling.
published 2019-04-03 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-16217
- cvss
- 5.5
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 54%
- public exploits
- 0
- none known
Summary
A memory initialization issue was addressed with improved memory handling. This issue affected versions prior to iOS 12.1.1, macOS Mojave 10.14.2, tvOS 12.1.1, watchOS 5.1.2.
Patch / fix
- apple iphone_os 12.1.1
- apple mac_os_x 10.14.2
- apple tvos 12.1.1
- apple watchos 5.1.2
Exploit prediction
0.74% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 5.5 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 4.9 | AV:L/AC:L/Au:N/C:C/I:N/A:N |
Affected products
- n/a iOS, macOS, tvOS, watchOS
Classification
- Weakness
-
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
References
-
support.apple.com
/kb/HT209343
vendor-advisory
-
support.apple.com
/kb/HT209342
vendor-advisory
-
support.apple.com
/kb/HT209340
vendor-advisory
-
support.apple.com
/kb/HT209341
vendor-advisory
Sources
- CVE List CVE-2018-4431
- NVD CVE-2018-4431
Fencer Vulns 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.