CVE-2018-4404 in the critical feed json
In iOS before 11.4 and macOS High Sierra before 10.13.5, a memory corruption issue exists and was addressed with improved memory handling.
published 2019-01-11 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-16190
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 14.0%
- EPSS 14.0% chance of exploitation in 30 days, percentile 96%
- public exploits
- 2
- Metasploit, Exploit-DB
Summary
In iOS before 11.4 and macOS High Sierra before 10.13.5, a memory corruption issue exists and was addressed with improved memory handling.
Patch / fix
- apple iphone_os 11.4
- apple macos 10.13.5
Timeline
- First public exploit (Metasploit exploit/osx/browser/safari_proxy_object_type_confusion)
- Published
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- 2 y ago
Exploit prediction
14.03% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Metasploit exploit/osx/browser/safari_proxy_object_type_confusion Safari Proxy Object Type Confusion metasploit exploit, manual rank, 2018-03-15
- EDB-45998 Safari - Proxy Object Type Confusion (Metasploit) remote, 2018-12-14
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 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 | 9.3 | AV:N/AC:M/Au:N/C:C/I:C/A:C |
Affected products
- apple iphone_os
- apple macos
Classification
- Weakness
-
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
-
exploit-db.com
/exploits/45998/
exploit, third-party-advisory, vdb-entry
-
support.apple.com
/HT208849
vendor-advisory
- support.apple.com /HT208848%2C
Sources
- CVE List CVE-2018-4404
- NVD CVE-2018-4404
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.