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7.8

macOS <10.13.4 lets malicious app run as system

CVE-2018-4136 · published 8 years ago
Summary

Versions of macOS earlier than 10.13.4 can be tricked by a specially crafted application to run code with full system privileges or cause the system to crash. This means an attacker could take control of the computer or make it unusable. Update macOS to the latest version to close the gap.

What to do
  • Update apple mac_os_x to version 10.13.4 or later.
Affected software
VendorProductAffected versions
apple mac_os_x < 10.13.4
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
Original advisory text
An issue was discovered in certain Apple products. macOS before 10.13.4 is affected. The issue involves the "Kernel" component. It allows attackers to execute arbitrary code in a privileged context...
An issue was discovered in certain Apple products. macOS before 10.13.4 is affected. The issue involves the "Kernel" component. It allows attackers to execute arbitrary code in a privileged context or cause a denial of service (out-of-bounds read) via a crafted app.
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker full control (estimated)
Severity
7.8 High
Exploitation
1% chance of attack within 30 days
Type
CWE-125Out-of-bounds Read
Timeline
Published3 Apr 2018
Updated31 Oct 2026
First seen29 Sep 2026
Sources
CVE-2018-4136 · NVD
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