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CVE-2026-43673: Processing a maliciously crafted audio file may corrupt process memory in Apple iOS and iPadOS

0
High
Published: 07/27/2026 (07/27/2026, 20:14:40 UTC)
Source: CVE Database V5
Vendor/Project: Apple
Product: iOS and iPadOS

Description

The issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, 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 v3.1

Score 7.8high

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected software

Apple

iOS and iPadOS

Affected versions
>=0 <18.7.10>=0 <26.6

Apple

macOS

Affected versions
>=0 <14.8.8>=0 <15.7.8>=0 <26.6

Apple

tvOS

Affected versions
>=0 <26.6

Apple

visionOS

Affected versions
>=0 <26.6

Apple

watchOS

Affected versions
>=0 <26.6

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 08/15/2026, 05:14:11 UTC

Technical Analysis

This vulnerability (CVE-2026-43673) affects Apple iOS and iPadOS and arises from improper handling of specially crafted audio files, leading to process memory corruption. The flaw is classified under CWE-119 (improper restriction of operations within the bounds of a memory buffer). An attacker must convince a user to interact with a malicious file or webpage to trigger the vulnerability. The CVSS v3.1 base score is 7.8, indicating high severity, with attack vector local (user interaction required), low attack complexity, no privileges required, and high impact on confidentiality, integrity, and availability. No official patch or remediation information is currently available from the vendor, and no known exploits are reported in the wild.

Potential Impact

If exploited, this vulnerability could allow remote attackers to execute arbitrary code on affected iOS and iPadOS devices, potentially leading to full compromise of the device including unauthorized access to sensitive data and control over system functions. The requirement for user interaction limits the attack vector to scenarios where the user opens a malicious audio file or visits a malicious webpage.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should avoid opening untrusted audio files or visiting suspicious websites. Monitor official Apple security advisories for updates and apply patches promptly once available.

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Technical Details

Data Version
5.2
Assigner Short Name
apple
Date Reserved
2026-05-01T22:46:21.640Z
State
PUBLISHED

Threat ID: 6a67c1b49c2644c7f8cb0e09

Added to database: 07/27/2026, 20:38:12 UTC

Last enriched: 08/15/2026, 05:14:11 UTC

Last updated: 09/10/2026, 20:01:57 UTC

Views: 90

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