CVE-2025-43494
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-12-12

Last updated on: 2026-04-02

Assigner: Apple Inc.

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.
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Meta Information
Published
2025-12-12
Last Modified
2026-04-02
Generated
2026-06-16
AI Q&A
2025-12-12
EPSS Evaluated
2026-06-15
NVD
CVE-2025-43494
Affected Vendors & Products
Showing 9 associated CPEs
Vendor Product Version / Range
apple ipados to 18.7.2 (exc)
apple ipados 26.0
apple iphone_os to 18.7.2 (exc)
apple iphone_os 26.0
apple macos From 14.0 (inc) to 14.8.2 (exc)
apple macos From 15.0 (inc) to 15.7.2 (exc)
apple macos 26.0
apple visionos to 26.1 (exc)
apple watchos to 26.1 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-20 The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
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Executive Summary

This vulnerability is a mail header parsing issue that was addressed by improving checks in the affected Apple operating systems. It could allow an attacker to cause a persistent denial-of-service condition.

Impact Analysis

An attacker exploiting this vulnerability may be able to cause a persistent denial-of-service, potentially disrupting the normal operation of affected devices.

Mitigation Strategies

To mitigate this vulnerability, update your Apple devices to the fixed versions: watchOS 26.1, iOS 18.7.2 and 26.1, iPadOS 18.7.2 and 26.1, macOS Tahoe 26.1, macOS Sonoma 14.8.2, macOS Sequoia 15.7.2, and visionOS 26.1. Applying these updates addresses the mail header parsing issue and prevents potential persistent denial-of-service attacks.

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