CVE-2026-43655

HIGH CVSS 3.1: 7.3 EPSS 0.34%
Updated Jun 17, 2026
Apple
Parameter Value
CVSS 7.3 (HIGH)
Affected Versions 26.0 — 26.5
Fixed In 26.5
Type CWE-125 (Out-of-bounds Read)
Vendor Apple
Public PoC No

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, watchOS 26.5. An app may be able to cause unexpected system termination or read kernel memory.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
Low
Partial disruption

CVSS Vector v3.1

Weakness Type (CWE)

Vulnerable Products 5

Configuration From (including) Up to (excluding)
Apple Ipados
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
26.5
Apple Iphone_Os
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
26.5
Apple Macos
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
26.0 26.5
Apple Tvos
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
26.5
Apple Watchos
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
26.5