CVE-2026-43773

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. Mounting a maliciously crafted disk image may cause unexpected system termination or corrupt kernel memory.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://support.apple.com/en-us/128067	Release Notes Vendor Advisory
https://support.apple.com/en-us/128071	Release Notes Vendor Advisory
https://support.apple.com/en-us/128072	Release Notes Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:apple:macos::::::::
	cpe:2.3:o:apple:macos::::::::
	cpe:2.3:o:apple:macos::::::::

History

24 Oct 2026, 13:10

Type	Values Removed	Values Added
Summary		(es) Se solucionó una lectura fuera de límites con una comprobación de límites mejorada. Este problema está corregido en macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. Montar una imagen de disco creada con fines maliciosos puede causar la terminación inesperada del sistema o corromper la memoria del kernel.

Information

Published : 2026-07-27 21:17

Updated : 2026-10-24 13:10

NVD link : CVE-2026-43773

Mitre link : CVE-2026-43773

CVE.ORG link : CVE-2026-43773

JSON object : View

Products Affected

apple

macos

CWE

CWE-125

Out-of-bounds Read

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