VulnerabilityModified
CVE-2018-4198
It allows remote attackers to cause a denial of service via a crafted text file.
MEDIUM 5.5EPSS 1.38%
Does this matter?
Lower severity and a low EPSS score (1.38%). 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 "UIKit" component. It allows remote attackers to cause a denial of service via a crafted text file.
- CVSS 3.0
- 5.5 MEDIUMCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- EPSS
- 1.38% probability · 72th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- apple/apple tv · apple/iphone os · apple/mac os x · apple/watchos
- Source
- product-security@apple.com
EPSS moved from 2.5% on 21 September 2026 to 1.4% on 27 October 2026.
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.