SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-4467

A memory corruption issue was addressed with improved state management.

HIGH 7.8EPSS 0.78%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.78%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

A memory corruption issue was addressed with improved state management. This issue is fixed in macOS Mojave 10.14.3, Security Update 2019-001 High Sierra, Security Update 2019-001 Sierra, macOS Mojave 10.14.2, Security Update 2018-003 High Sierra, Security Update 2018-006 Sierra. A malicious application may be able to elevate privileges.

CVSS 3.1
7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
0.78% probability · 56th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Affected
apple/mac os x
Source
product-security@apple.com
EPSS trend
0%3%5%27 October 2026: 0.78%27 October 202627 October 2026

EPSS 0.8% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.