CVE-2018-4408
A memory corruption issue was addressed with improved input validation This issue affected versions prior to iOS 12, macOS Mojave 10.14, tvOS 12, watchOS 5.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.06%). 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 input validation This issue affected versions prior to iOS 12, macOS Mojave 10.14, tvOS 12, watchOS 5.
- 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
- 1.06% 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/HT209106Vendor Advisory
- https://support.apple.com/kb/HT209107Vendor Advisory
- https://support.apple.com/kb/HT209108Vendor Advisory
- https://support.apple.com/kb/HT209139Vendor Advisory
- https://support.apple.com/kb/HT209193Vendor Advisory
- https://support.apple.com/kb/HT209106Vendor Advisory
- https://support.apple.com/kb/HT209107Vendor Advisory
- https://support.apple.com/kb/HT209108Vendor Advisory
- https://support.apple.com/kb/HT209139Vendor Advisory
- https://support.apple.com/kb/HT209193Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.