VulnerabilityAnalyzed
CVE-2026-43666
An out-of-bounds write issue was addressed with improved bounds checking.
MEDIUM 6.2EPSS 0.15%
Does this matter?
Lower severity and a low EPSS score (0.15%). Track it; it rarely justifies an emergency change on its own.
Description
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. An attacker on the local network may be able to cause a denial-of-service.
- CVSS 3.1
- 6.2 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.15% probability · 4th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- apple/ipados · apple/iphone os · apple/macos · apple/tvos · apple/visionos · apple/watchos
- Source
- product-security@apple.com
References
- https://support.apple.com/en-us/127110Release Notes, Vendor Advisory
- https://support.apple.com/en-us/127111Release Notes, Vendor Advisory
- https://support.apple.com/en-us/127115Release Notes, Vendor Advisory
- https://support.apple.com/en-us/127116Release Notes, Vendor Advisory
- https://support.apple.com/en-us/127117Release Notes, Vendor Advisory
- https://support.apple.com/en-us/127118Release Notes, Vendor Advisory
- https://support.apple.com/en-us/127119Release Notes, Vendor Advisory
- https://support.apple.com/en-us/127120Release Notes, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.