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Fencer Intel
medium 5.5

CVE-2018-4283 json

An out-of-bounds read issue existed that led to the disclosure of kernel memory.

published 2019-04-03 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-16069

cvss
5.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 24%
public exploits
0
none known

Summary

An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed with improved input validation. This issue affected versions prior to macOS High Sierra 10.13.6.

Patch / fix

  • apple mac_os_x 10.13.6

Exploit prediction

0.32% chance of exploitation in the next 30 days, higher than 24% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 4.9 AV:L/AC:L/Au:N/C:C/I:N/A:N

Affected products

  • n/a macOS

Classification

Weakness

References

Sources

Fencer Intel 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.