Memory Corruption Vulnerability in Apple Operating Systems
CVE-2025-43520

5.5MEDIUM

Key Information:

Vendor: Apple
Status: Mac OS; TV OS; Visionos; Watch OS
Vendor: CVE Published:; 12 December 2025

What is CVE-2025-43520?

A memory corruption issue has been identified in various Apple operating systems, leading to potential system instability. This vulnerability could allow a malicious application to initiate unexpected system terminations or manipulate kernel memory, thereby compromising system integrity. Apple has addressed this vulnerability through improved memory handling in the latest software updates.

Affected Version(s)

iOS and iPadOS < 26.1

iOS and iPadOS < 18.7

macOS < 14.8

References

https://support.apple.com/en-us/125636

https://support.apple.com/en-us/125637

https://support.apple.com/en-us/125634

CVSS V3.1

Score:

5.5

Severity:

MEDIUM

Confidentiality:

None

Integrity:

None

Availability:

None

Attack Vector:

Local

Attack Complexity:

Low

Privileges Required:

Low

User Interaction:

None

Scope:

Unchanged

Timeline

Vulnerability published
Dec 12, 2025
Vulnerability Reserved
Apr 16, 2025

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