CVE-2026-43803
Medium
Elevated severity or exploit probability.
CVSS base
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
0.8%
55.4th percentile
CISA KEV
Not listed
Weakness / dates
CWE-787
Published 2026-07-27 · modified 2026-08-17
Description
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. A remote attacker may be able to cause unexpected system termination.
Affected
References
- https://support.apple.com/en-us/128066
- https://support.apple.com/en-us/128067
- https://support.apple.com/en-us/128068
- https://support.apple.com/en-us/128069
- https://support.apple.com/en-us/128070
- https://support.apple.com/en-us/128071
- https://support.apple.com/en-us/128072
- https://support.apple.com/en-us/148287