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Fencer Vulns
medium 5.5

CVE-2018-4363 json

An input validation issue existed in the kernel.

published 2019-04-03 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-16149

cvss
5.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 61%
public exploits
0
none known

Summary

An input validation issue existed in the kernel. This issue was addressed with improved input validation. This issue affected versions prior to iOS 12, tvOS 12, watchOS 5.

Patch / fix

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

Exploit prediction

0.96% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 5.5 CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
NVD 2.0 7.1 AV:N/AC:M/Au:N/C:C/I:N/A:N

Affected products

  • n/a iOS, tvOS, watchOS

Classification

Weakness
  • CWE-20 Improper Input Validation

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.