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.

CVSS Scores

EPSS Scores

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Meta Information

Published

2025-12-12

Last Modified

2026-04-02

Generated

2026-07-06

AI Q&A

2025-12-12

EPSS Evaluated

2026-07-05

NVD

CVE-2025-43494

Affected Vendors & Products

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

KEV

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.

Attack-Flow Graph

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.

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.

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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