Critical severity · published Apr 3, 2019
CVE-2018-4367
A memory corruption issue was addressed with improved input validation
9.8
CVSS
6.5%
EPSS
No
On KEV
Description
A memory corruption issue was addressed with improved input validation. This issue affected versions prior to iOS 12.1.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)6.5% · higher than 94% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IO
iOS · Apple
before 12.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-4367
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-4367
Vendor Advisory
https://support.apple.com/kb/HT209192
More from iOS
10.0
CVE-2025-43300
Apple iOS, iPadOS, and macOS Out-of-Bounds Write Vulnerability
10.0
CVE-2025-24201
Apple Multiple Products WebKit Out-of-Bounds Write Vulnerability
10.0
CVE-2025-24085
Apple Multiple Products Use-After-Free Vulnerability
9.8
CVE-2025-31200
Apple Multiple Products Memory Corruption Vulnerability
9.8
CVE-2025-31201
Apple Multiple Products Arbitrary Read and Write Vulnerability
