Out-of-bounds Read in Apple Mac OS X

CVE-2018-4434

An out-of-bounds read was addressed with improved input validation. This issue affected versions prior to macOS Mojave 10.14.2.

Vulnerability class: Buffer Overflow

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.

EPSS exploit prediction

EPSS: 0.003 (21.5th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 21.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2018-4434: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

  • Apple Mac OS X
  • macOS — versions Versions prior to: macOS Mojave 10.14.2

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2018-4434?
CVE-2018-4434 is a high-severity vulnerability in Apple Mac OS X, classified under Out-of-bounds Read. CVSS score: 7.1/10. Published 2019-04-03.
How severe is CVE-2018-4434?
High severity. CVSS v3 base score is 7.1 out of 10.