CVE-2026-43673

Analyzed Analyzed - Analysis Complete

Memory Corruption in Apple iOS and macOS via Malicious Audio File

Publication date: 2026-07-27

Last updated on: 2026-07-28

Assigner: Apple Inc.

Description

The issue was addressed with improved memory handling. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. Processing a maliciously crafted audio file may corrupt process memory.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-07-27

Last Modified

2026-07-28

Generated

2026-08-17

AI Q&A

2026-07-28

EPSS Evaluated

2026-08-15

NVD

CVE-2026-43673

EUVD

EUVD-2026-49452

Affected Vendors & Products

Vendor	Product	Version / Range
apple	macos	From 14.0 (inc) to 14.8.8 (exc)
apple	macos	From 15.0 (inc) to 15.7.8 (exc)
apple	macos	From 26.0 (inc) to 26.6 (exc)
apple	ipados	to 26.6 (exc)
apple	iphone_os	to 26.6 (exc)
apple	tvos	to 26.6 (exc)
apple	visionos	to 26.6 (exc)
apple	watchos	to 26.6 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-119	The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

Attack-Flow Graph

Executive Summary

This vulnerability involves processing a maliciously crafted audio file that may corrupt process memory. It was addressed by improving memory handling in multiple Apple operating systems.

Detection Guidance

This vulnerability involves processing maliciously crafted audio files that may corrupt process memory. Detection requires checking if your system is running an affected version of iOS, iPadOS, macOS, tvOS, visionOS, or watchOS. Compare your installed versions against the fixed versions listed in the CVE description.

Impact Analysis

If exploited, this vulnerability could allow an attacker to corrupt memory during audio processing, potentially leading to crashes or arbitrary code execution on affected devices.

Compliance Impact

The provided CVE data does not specify any direct impact on compliance with standards like GDPR or HIPAA. The vulnerability involves memory corruption from processing a maliciously crafted audio file, which could potentially lead to arbitrary code execution or denial of service. However, no details are given about data exposure or privacy implications that would directly affect compliance.

Mitigation Strategies

Update affected systems to the latest patched versions: iOS 26.6, iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, or watchOS 26.6. Avoid processing untrusted audio files until updates are applied.

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