CVE-2025-43494

A mail header parsing issue was addressed with improved checks. 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, visionOS 26.1, watchOS 26.1. An attacker may be able to cause a persistent denial-of-service.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

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/125638	Release Notes Vendor Advisory
https://support.apple.com/en-us/125639	Release Notes Vendor Advisory

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:visionos::::::::
	cpe:2.3:o:apple:watchos::::::::

History

30 Sep 2026, 20:10

Type	Values Removed	Values Added
Summary		(es) Se abordó un problema de análisis de encabezados de correo con comprobaciones mejoradas. Este problema se solucionó en watchOS 26.1, iOS 18.7.2 y iPadOS 18.7.2, macOS Tahoe 26.1, visionOS 26.1, macOS Sonoma 14.8.2, macOS Sequoia 15.7.2, iOS 26.1 y iPadOS 26.1. Un atacante podría causar una denegación de servicio persistente.

Information

Published : 2025-12-12 21:15

Updated : 2026-10-07 11:10

NVD link : CVE-2025-43494

Mitre link : CVE-2025-43494

CVE.ORG link : CVE-2025-43494

JSON object : View

Products Affected

apple

macos
iphone_os
watchos
ipados
visionos

CWE

CWE-20

Improper Input Validation

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