CVE-2026-43776

HIGH CVSS 3.1: 7.8 EPSS 0.15%
Updated Jul 28, 2026
Apple
Parameter Value
CVSS 7.8 (HIGH)
Type CWE-120 (Buffer Copy without Checking Size)
Vendor Apple
Public PoC No

A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Tahoe 26.6. Processing a maliciously crafted file may lead to unexpected app termination or arbitrary code execution.

Attack Parameters

Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Vulnerable Products

apple:macos apple:ios and ipados