CVE-2025-43494

State: Published
Severity: 7.5 High
Published: Dec 12, 2025
Updated: Apr 2, 2026
Reserved: Apr 16, 2025

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

CWE-20 Improper Input Validation

Affected Products

Product	Versions
iOS and iPadOSApple	before 18.7.2Affected before 26.1Affected
macOSApple	before 14.8.2Affected before 15.7.2Affected before 26.1Affected
visionOSApple	before 26.1Affected
watchOSApple	before 26.1Affected

References

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