CVE-2018-4398 json
An issue existed in the method for determining prime numbers.
published 2019-04-03 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-16184
- cvss
- 7.5
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.6%
- EPSS 1.6% chance of exploitation in 30 days, percentile 76%
- public exploits
- 0
- none known
Summary
An issue existed in the method for determining prime numbers. This issue was addressed by using pseudorandom bases for testing of primes. This issue affected versions prior to iOS 12.1, macOS Mojave 10.14.1, tvOS 12.1, watchOS 5.1, iTunes 12.9.1, iCloud for Windows 7.8.
Patch / fix
- apple icloud 7.8
- apple itunes 12.9.1
- apple iphone_os 12.1
- apple mac_os_x 10.14.1
- apple tvos 12.1
- apple watchos 5.1
Exploit prediction
1.63% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
Affected products
- n/a iOS, macOS, tvOS, watchOS, iTunes for Windows, iCloud for Windows
Classification
- Weakness
-
- CWE-20 Improper Input Validation
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
-
support.apple.com
/kb/HT209197
vendor-advisory
-
support.apple.com
/kb/HT209198
vendor-advisory
Sources
- CVE List CVE-2018-4398
- NVD CVE-2018-4398
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.