CVE-2026-28973

HIGH CVSS 3.1: 8.6 EPSS 0.13%
Updated Jul 28, 2026
Apple
Parameter Value
CVSS 8.6 (HIGH)
Affected Versions 14.0 — 26.6
Fixed In 26.6
Type CWE-190 (Integer Overflow)
Vendor Apple
Public PoC No

An integer overflow was addressed with improved input validation. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, watchOS 26.6. A malicious app may be able to break out of its sandbox.

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

Weakness Type (CWE)

Vulnerable Products 6

Configuration From (including) Up to (excluding)
Apple Ipados
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
26.6
Apple Iphone_Os
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
26.6
Apple Macos
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
14.0 14.8.8
Apple Macos
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
15.0 15.7.8
Apple Macos
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
26.0 26.6
Apple Watchos
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
26.6