CVE-2025-43520

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.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://support.apple.com/en-us/125632	Release Notes Vendor Advisory
https://support.apple.com/en-us/125633	Release Notes Vendor Advisory
https://support.apple.com/en-us/125634	Release Notes Vendor Advisory
https://support.apple.com/en-us/125635	Release Notes Vendor Advisory
https://support.apple.com/en-us/125636	Release Notes Vendor Advisory
https://support.apple.com/en-us/125637	Release Notes Vendor Advisory
https://support.apple.com/en-us/125638	Release Notes Vendor Advisory
https://support.apple.com/en-us/125639	Release Notes Vendor Advisory
https://cloud.google.com/blog/topics/threat-intelligence/darksword-ios-exploit-chain/	Technical Description
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-43520	US Government Resource

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:apple:ipados::::::::
	cpe:2.3:o:apple:ipados:26.0:::::::*
	cpe:2.3:o:apple:iphone_os::::::::
	cpe:2.3:o:apple:iphone_os:26.0:::::::*
	cpe:2.3:o:apple:macos::::::::
	cpe:2.3:o:apple:macos::::::::
	cpe:2.3:o:apple:macos:26.0:::::::*
	cpe:2.3:o:apple:tvos::::::::
	cpe:2.3:o:apple:visionos::::::::
	cpe:2.3:o:apple:watchos::::::::

History

No history.

Information

Published : 2025-12-12 21:15

Updated : 2026-06-17 09:24

NVD link : CVE-2025-43520

Mitre link : CVE-2025-43520

CVE.ORG link : CVE-2025-43520

JSON object : View

Products Affected

apple

iphone_os
ipados
visionos
tvos
watchos
macos

CWE

CWE-120

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

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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. 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