Vulnerability Monitor

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CVE-2025-43494

A mail header parsing issue was addressed with improved checks. This issue is fixed in watchOS 26.1, iOS 18.7.2 and iPadOS 18.7.2, macOS Tahoe 26.1, visionOS 26.1, macOS Sonoma 14.8.2, macOS Sequoia 15.7.2, iOS 26.1 and iPadOS 26.1. An attacker may be able to cause a persistent denial-of-service.

Published

2025-12-12T21:15:55.390

Last Modified

2025-12-16T18:36:42.683

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

Weaknesses

Type: Secondary
CWE-20

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	apple	ipados	< 18.7.2	Yes
Operating System	apple	ipados	26.0	Yes
Operating System	apple	iphone_os	< 18.7.2	Yes
Operating System	apple	iphone_os	26.0	Yes
Operating System	apple	macos	< 14.8.2	Yes
Operating System	apple	macos	< 15.7.2	Yes
Operating System	apple	macos	26.0	Yes
Operating System	apple	visionos	< 26.1	Yes
Operating System	apple	watchos	< 26.1	Yes

References

https://support.apple.com/en-us/125632 Release Notes, Vendor Advisory ([email protected])
https://support.apple.com/en-us/125633 Release Notes, Vendor Advisory ([email protected])
https://support.apple.com/en-us/125634 Release Notes, Vendor Advisory ([email protected])
https://support.apple.com/en-us/125635 Release Notes, Vendor Advisory ([email protected])
https://support.apple.com/en-us/125636 Release Notes, Vendor Advisory ([email protected])
https://support.apple.com/en-us/125638 Release Notes, Vendor Advisory ([email protected])
https://support.apple.com/en-us/125639 Release Notes, Vendor Advisory ([email protected])