CVE-2018-4344
KEVApple Multiple Products Memory Corruption Vulnerability
Description
Apple iOS, macOS, tvOS, and watchOS contain a memory corruption vulnerability which can allow for code execution.
A memory corruption issue was addressed with improved memory handling. This issue affected versions prior to iOS 12, macOS Mojave 10.14, tvOS 12, watchOS 5.
CVSS 3.1 vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HPublishedApr 3, 2019
Last modifiedJun 17, 2026
Added to KEVJun 27, 2022
Remediation dueJul 18, 2022
References
- support.apple.com/kb/HT209106Release NotesVendor Advisory
- support.apple.com/kb/HT209107Release NotesVendor Advisory
- support.apple.com/kb/HT209108Release NotesVendor Advisory
- support.apple.com/kb/HT209139Release NotesVendor Advisory
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-4344US Government Resource
0 recent articles mention this CVE
69
Risk assessment · High
Actively exploited. Patch immediately.
- Exploitation
- Confirmed in the wild (CISA KEV)
- Federal remediation deadline
- Overdue by 1562 days
- CVSS
- 7.8 HIGH
- EPSS (30-day exploit probability)
- 2.4% · top 16% of all CVEs
- Weakness
- CWE-119
Recommended actions
- 1.Apply updates per vendor instructions.
- 2.Treat as emergency change: patch or isolate internet-facing instances first.
- 3.Hunt for compromise: review logs for the disclosure window, not just from the patch date.
Assessment is derived automatically from the live signals above; verify against your own asset inventory.