SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-4230

It allows attackers to execute arbitrary code in a privileged context via a crafted app that triggers a SetAppSupportBits use-after-free because of a race condition.

EXPLOIT ✓HIGH 7.0EPSS 4.03%

Does this matter?

A public exploit is published in Exploit-DB (verified) and the impact is high, while EPSS rates exploitation at 4.0%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use.

Description

An issue was discovered in certain Apple products. macOS before 10.13.5 is affected. The issue involves the "NVIDIA Graphics Drivers" component. It allows attackers to execute arbitrary code in a privileged context via a crafted app that triggers a SetAppSupportBits use-after-free because of a race condition.

CVSS 3.0
7.0 HIGHCVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
4.03% probability · 91th percentile
Public exploits
1 in Exploit-DB · verified · first 6 June 2018
CISA KEV
Not listed
Weakness
CWE-362
Affected
apple/mac os x
Source
product-security@apple.com
EPSS trend
0%5%10%21 September 2026: 8.58%22 September 2026: 4.11%27 October 2026: 4.03%21 September 202627 October 2026

EPSS moved from 8.6% on 21 September 2026 to 4.0% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-44847source ↗Apple macOS Kernel - Use-After-Free Due to Lack of Locking in nvidia GeForce Drivermacos · Google Security Researchdos6 June 2018yes

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