CVE-2018-4223
It allows local users to bypass intended restrictions on the reading of a persistent account identifier.
Does this matter?
Lower severity and a low EPSS score (0.34%). Track it; it rarely justifies an emergency change on its own.
Description
An issue was discovered in certain Apple products. iOS before 11.4 is affected. macOS before 10.13.5 is affected. tvOS before 11.4 is affected. watchOS before 4.3.1 is affected. The issue involves the "Security" component. It allows local users to bypass intended restrictions on the reading of a persistent account identifier.
- CVSS 3.0
- 5.5 MEDIUMCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.34% probability · 27th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- apple/apple tv · apple/iphone os · apple/mac os x · apple/watchos
- Source
- product-security@apple.com
EPSS 0.3% 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.
References
- http://www.securitytracker.com/id/1041027Third Party Advisory, VDB Entry
- https://support.apple.com/HT208848Vendor Advisory
- https://support.apple.com/HT208849Vendor Advisory
- https://support.apple.com/HT208850Vendor Advisory
- https://support.apple.com/HT208851Vendor Advisory
- http://www.securitytracker.com/id/1041027Third Party Advisory, VDB Entry
- https://support.apple.com/HT208848Vendor Advisory
- https://support.apple.com/HT208849Vendor Advisory
- https://support.apple.com/HT208850Vendor Advisory
- https://support.apple.com/HT208851Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.