CVE-2018-4174 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-2018-15960
- cvss
- 5.9
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.5%
- EPSS 1.5% chance of exploitation in 30 days, percentile 73%
- public exploits
- 0
- none known
Summary
An issue was discovered in certain Apple products. iOS before 11.3 is affected. macOS before 10.13.4 is affected. The issue involves the "Mail" component. It allows man-in-the-middle attackers to read S/MIME encrypted messages by leveraging an inconsistency in the user interface.
Patch / fix
- apple iphone_os 11.3
- apple mac_os_x 10.13.4
Exploit prediction
1.45% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 5.9 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:P/I:N/A:N |
References
-
support.apple.com
/HT208692
vendor-advisory
-
support.apple.com
/HT208693
vendor-advisory
-
securitytracker.com
/id/1040604
vdb-entry, third-party-advisory
-
securityfocus.com
/bid/103581
vdb-entry, third-party-advisory
-
securitytracker.com
/id/1040608
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2018-4174
- NVD CVE-2018-4174
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.