CVE-2025-43520

Severity CVSS v4.0:

Pending analysis

Type:

CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Publication date:

12/12/2025

Last modified:

03/04/2026

Description

A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.2 and iPadOS 18.7.2, iOS 26.1 and iPadOS 26.1, macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, macOS Tahoe 26.1, tvOS 26.1, visionOS 26.1, watchOS 26.1. A malicious application may be able to cause unexpected system termination or write kernel memory.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

5.50

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:apple:ipados::::::::		18.7.2 (excluding)
cpe:2.3:o:apple:ipados:26.0:::::::*
cpe:2.3:o:apple:iphone_os::::::::		18.7.2 (excluding)
cpe:2.3:o:apple:iphone_os:26.0:::::::*
cpe:2.3:o:apple:macos::::::::	14.0 (including)	14.8.2 (excluding)
cpe:2.3:o:apple:macos::::::::	15.0 (including)	15.7.2 (excluding)
cpe:2.3:o:apple:macos:26.0:::::::*
cpe:2.3:o:apple:tvos::::::::		26.1 (excluding)
cpe:2.3:o:apple:visionos::::::::		26.1 (excluding)
cpe:2.3:o:apple:watchos::::::::		26.1 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2025-43520

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools