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Public proof of conceptFix available

CVE-2018-4404

A public proof of concept exists; no exploitation attested.

  • Published2019-01-11
  • Fixed in11.4
  • WeaknessCWE-119

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC
  1. 2018-12-14Exploit-DB entryExploit-DB

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2018-4404?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2018-4404?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · CISA-ADP
Apple iphone os
BranchAffectedFixed in
11.4< 11.411.4
Apple mac os x
BranchAffectedFixed in
10.13≥ 10.13.0, < 10.13.510.13.5
Apple macos
BranchAffectedFixed in
10.13< 10.13.510.13.5

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update Apple iphone os to 11.4

Advisories and patches

Detection

read 2026-11-03 22:42 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
EDB-45998
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
1 moduleexploit/osx/browser/safari_proxy_object_type_confusionrank: manualModule metadata: Metasploit Framework, © Rapid7, Inc., BSD-3-Clause.
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2019-01-11
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2018-4404?

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.

Is CVE-2018-4404 actively exploited?

A proof-of-concept exploit exists for CVE-2018-4404, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2018-4404?

CVE-2018-4404 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

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Same product first, then the same vendor advisory and the same publication week.

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Sources for this record