CVE-2018-4156
A race condition allows attackers to execute arbitrary code in a privileged context via a crafted app.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.11%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue was discovered in certain Apple products. iOS before 11.3 is affected. macOS before 10.13.4 is affected. The issue involves the "PluginKit" component. A race condition allows attackers to execute arbitrary code in a privileged context via a crafted app.
- 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
- 1.11% probability · 66th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-362
- Affected
- apple/iphone os · apple/mac os x
- Source
- product-security@apple.com
EPSS moved from 2.3% on 21 September 2026 to 1.1% on 27 October 2026.
References
- http://www.securityfocus.com/bid/103581Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040604Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040608Third Party Advisory, VDB Entry
- https://support.apple.com/HT208692Vendor Advisory
- https://support.apple.com/HT208693Vendor Advisory
- http://www.securityfocus.com/bid/103581Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040604Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040608Third Party Advisory, VDB Entry
- https://support.apple.com/HT208692Vendor Advisory
- https://support.apple.com/HT208693Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.