CVE-2018-4344
Apple Multiple Products Memory Corruption Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 18 July 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
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
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 2.37% probability · 84th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Listed 27 June 2022 · due 18 July 2022
- Weakness
- CWE-119
- Affected
- apple/iphone os · apple/mac os x · apple/tvos · apple/watchos
- Source
- product-security@apple.com
EPSS 2.4% 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.
CISA notes
Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2018-4344
References
- https://support.apple.com/kb/HT209106Release Notes, Vendor Advisory
- https://support.apple.com/kb/HT209107Release Notes, Vendor Advisory
- https://support.apple.com/kb/HT209108Release Notes, Vendor Advisory
- https://support.apple.com/kb/HT209139Release Notes, Vendor Advisory
- https://support.apple.com/kb/HT209106Release Notes, Vendor Advisory
- https://support.apple.com/kb/HT209107Release Notes, Vendor Advisory
- https://support.apple.com/kb/HT209108Release Notes, Vendor Advisory
- https://support.apple.com/kb/HT209139Release Notes, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-4344US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.