High severity · published Jul 27, 2026
CVE-2026-43673
The issue was addressed with improved memory handling
7.8
CVSS
0.2%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 7% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MA
macOS · Apple
before 14.8.8; before 15.7.8; before 26.6 · source: vendor, NVD
IO
iOS · Apple
before 26.6 · source: NVD
IA
iOS and iPadOS · Apple
before 18.7.10; before 26.6 · source: vendor
TV
tvOS · Apple
before 26.6 · source: vendor, NVD
VI
visionOS · Apple
before 26.6 · source: vendor, NVD
WA
watchOS · Apple
before 26.6 · source: vendor, NVD
In the news
VulnerabilityHigh
ZDI-26-491: Apple macOS CoreAudio Out-Of-Bounds Write Remote Code Execution Vulnerability
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Apple macOS. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The ZDI has assigned a CVSS rating of 8.8. The following CVEs are assigned: CVE-2026-43673.
Jul 29, 2026·Zero Day Initiative
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-43673
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-43673
Release Notes
https://support.apple.com/en-us/128066
Release Notes
https://support.apple.com/en-us/128067
Release Notes
https://support.apple.com/en-us/128068
Release Notes
https://support.apple.com/en-us/128069
Release Notes
https://support.apple.com/en-us/128070
Release Notes
https://support.apple.com/en-us/128071
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