CVE-2018-4474
A memory consumption issue was addressed with improved memory handling.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.71%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A memory consumption issue was addressed with improved memory handling. This issue is fixed in iCloud for Windows 7.7, watchOS 5, Safari 12, iOS 12, iTunes 12.9 for Windows, tvOS 12. Unexpected interaction causes an ASSERT failure.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.71% probability · 77th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-400
- Affected
- apple/icloud · apple/itunes · apple/safari · apple/iphone os · apple/tvos · apple/watchos
- Source
- product-security@apple.com
EPSS 1.7% 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/en-us/HT209106Vendor Advisory
- https://support.apple.com/en-us/HT209107Vendor Advisory
- https://support.apple.com/en-us/HT209108Vendor Advisory
- https://support.apple.com/en-us/HT209109Vendor Advisory
- https://support.apple.com/en-us/HT209140Vendor Advisory
- https://support.apple.com/en-us/HT209141Vendor Advisory
- https://support.apple.com/en-us/HT209106Vendor Advisory
- https://support.apple.com/en-us/HT209107Vendor Advisory
- https://support.apple.com/en-us/HT209108Vendor Advisory
- https://support.apple.com/en-us/HT209109Vendor Advisory
- https://support.apple.com/en-us/HT209140Vendor Advisory
- https://support.apple.com/en-us/HT209141Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.