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Fencer Vulns
high 7.5

CVE-2018-4474 json

A memory consumption issue was addressed with improved memory handling.

published 2020-10-27 6 y ago modified 2026-06-17 4 mo ago also EUVD-2018-16260

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.7%
EPSS 1.7% chance of exploitation in 30 days, percentile 77%
public exploits
0
none known

Summary

A memory consumption issue was addressed with improved memory handling. This issue is fixed in iCloud for Windows 7.7, watchOS 5, Safari 12, iOS 12, iTunes 12.9 for Windows, tvOS 12. Unexpected interaction causes an ASSERT failure.

Patch / fix

  • Apple iOS 12
  • Apple tvOS 12
  • Apple watchOS 5
  • Apple Safari 12
  • Apple iTunes for Windows 12.9
  • Apple iCloud for Windows 7.7

Exploit prediction

1.71% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

  • Apple iOS
  • Apple tvOS
  • Apple watchOS
  • Apple Safari
  • Apple iTunes for Windows
  • Apple iCloud for Windows

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption

References

Sources

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.