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Fencer Vulns
high 8.8

CVE-2018-4407 in the critical feed json

A memory corruption issue was addressed with improved validation.

published 2019-04-03 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-16193

cvss
8.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
21.4%
EPSS 21.4% chance of exploitation in 30 days, percentile 97%
public exploits
0
none known

Summary

A memory corruption issue was addressed with improved validation. This issue affected versions prior to iOS 12, macOS Mojave 10.14, tvOS 12, watchOS 5.

Patch / fix

  • apple iphone_os 12.0
  • apple mac_os_x 10.14
  • apple tvos 12
  • apple watchos 5.0

Exploit prediction

21.39% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 8.8 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected products

  • n/a iOS, macOS, tvOS, watchOS

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

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.