VulnerabilityModified
CVE-2018-4447
A memory corruption issue was addressed with improved state management.
HIGH 7.8EPSS 1.05%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.05%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A memory corruption issue was addressed with improved state management. This issue affected versions prior to iOS 12.1.1, macOS Mojave 10.14.2, tvOS 12.1.1, watchOS 5.1.2.
- CVSS 3.0
- 7.8 HIGHCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 1.05% probability · 64th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- apple/iphone os · apple/mac os x · apple/tvos · apple/watchos
- Source
- product-security@apple.com
EPSS 1.1% 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
- https://support.apple.com/kb/HT209340Vendor Advisory
- https://support.apple.com/kb/HT209341Vendor Advisory
- https://support.apple.com/kb/HT209342Vendor Advisory
- https://support.apple.com/kb/HT209343Vendor Advisory
- https://support.apple.com/kb/HT209340Vendor Advisory
- https://support.apple.com/kb/HT209341Vendor Advisory
- https://support.apple.com/kb/HT209342Vendor Advisory
- https://support.apple.com/kb/HT209343Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.