CVE-2026-84632

Memory Corruption via Malicious 3D Model Parsing

Published Sep 14, 2026 CVSS 3.1 · 7.3 High EPSS < 1% KEV · Not listed

Description

The issue was addressed with improved memory handling. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, watchOS 27. Processing a maliciously crafted 3D model may lead to memory corruption.

Analysis

Technical impact

An improper memory handling flaw in the 3D model rendering pipeline causes a buffer assignment error (CWE-120) when a crafted 3D file is parsed. The resulting memory corruption can lead to application crashes and, depending on the execution context, may provide a vector for arbitrary code execution. The vulnerability is triggered only when the system processes a maliciously crafted 3D model.

Affected Systems

Apple iOS 26.7 and 27, iPadOS 26.7 and 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, and watchOS 27 are affected. All earlier releases that have not applied the 26.7/27 updates remain vulnerable.

Risk and Exploitability

The CVSS score of 7.3 indicates high severity, while the EPSS score of <1% shows a very low expected exploitation probability. The issue is not listed in the CISA KEV catalog. Exploitation would require an attacker to deliver or load a crafted 3D model in any application or system component that parses such content, making the risk primarily local or dependent on how 3D files are obtained.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Apple

iOS and iPadOS

affected

Version	Status	Constraints
`0`	affected	< 26.7
`0`	affected	< 27

Apple

macOS

affected

Version	Status	Constraints
`0`	affected	< 15.8
`0`	affected	< 26.7
`0`	affected	< 27

Apple

tvOS

affected

Version	Status	Constraints
`0`	affected	< 27

Apple

visionOS

affected

Version	Status	Constraints
`0`	affected	< 27

Apple

watchOS

affected

Version	Status	Constraints
`0`	affected	< 27

Configuration 1 [-]

OR	cpe:2.3:o:apple:ipados::::::::
	cpe:2.3:o:apple:iphone_os::::::::
	cpe:2.3:o:apple:macos::::::::
	cpe:2.3:o:apple:macos::::::::
	cpe:2.3:o:apple:tvos::::::::
	cpe:2.3:o:apple:visionos::::::::
	cpe:2.3:o:apple:watchos::::::::

No data.

Vendor Product Versions

Apple

Ios And Ipados

Version	Status	Scheme	Platform
`[0,26.7)`	affected	generic	—
`[0,27)`	affected	generic	—

Apple

Macos

Version	Status	Scheme	Platform
`[0,15.8)`	affected	generic	—
`[0,26.7)`	affected	generic	—
`[0,27)`	affected	generic	—

Apple

Tvos

Version	Status	Scheme	Platform
`[0,27)`	affected	generic	—

Apple

Visionos

Version	Status	Scheme	Platform
`[0,27)`	affected	generic	—

Apple

Watchos

Version	Status	Scheme	Platform
`[0,27)`	affected	generic	—

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

Apply the latest Apple security updates that include iOS 27, iPadOS 27, macOS Golden Gate 27 or newer, and the corresponding updates for tvOS, visionOS, and watchOS.
Disable or sandbox the processing of third‑party 3D models until the update is applied.
For developers, add content validation to ensure 3D model files are well‑formed, restrict size and complexity, and limit access to trusted sources.

Generated by OpenCVE AI on September 20, 2026 at 21:40 UTC.

Tracking

Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.166% probability within 30 days)

Exploitation none

Automatable no

Technical Impact total

References

Link	Providers
https://support.apple.com/en-us/149034
https://support.apple.com/en-us/149035
https://support.apple.com/en-us/149036
https://support.apple.com/en-us/149037
https://support.apple.com/en-us/149038
https://support.apple.com/en-us/149041
https://support.apple.com/en-us/149042
https://support.apple.com/en-us/149043

History

Sep 20, 2026 10:00 PM Title updated View changes

Type	Values Removed	Values Added
Title		Memory Corruption via Malicious 3D Model Parsing

Sep 16, 2026 6:45 PM First appearance in the feed. Affected versions updated. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Apple ipados Apple iphone Os
CPEs		cpe:2.3:o:apple:ipados:::::::: cpe:2.3:o:apple:iphone_os:::::::: cpe:2.3:o:apple:macos:::::::: cpe:2.3:o:apple:tvos:::::::: cpe:2.3:o:apple:visionos:::::::: cpe:2.3:o:apple:watchos::::::::
Vendors & Products		Apple ipados Apple iphone Os

Sep 16, 2026 2:00 PM Title updated. Weaknesses updated View changes

Type	Values Removed	Values Added
Title	Memory Corruption via Malicious 3D Model Processing
Weaknesses	CWE-787

Sep 15, 2026 5:30 PM Weaknesses updated. Scoring metrics updated View changes

Type	Values Removed	Values Added
Weaknesses		CWE-120
Metrics		cvssV3_1 `{'score': 7.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Sep 15, 2026 12:15 PM Title updated. Weaknesses updated View changes

Type	Values Removed	Values Added
Title		Memory Corruption via Malicious 3D Model Processing
Weaknesses		CWE-787

Sep 15, 2026 9:30 AM First appearance in the feed. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Apple Apple ios And Ipados Apple macos Apple tvos Apple visionos Apple watchos
Vendors & Products		Apple Apple ios And Ipados Apple macos Apple tvos Apple visionos Apple watchos

Sep 14, 2026 9:00 PM Description updated. Added references View changes

Type	Values Removed	Values Added
Description		The issue was addressed with improved memory handling. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, watchOS 27. Processing a maliciously crafted 3D model may lead to memory corruption.
References		https://support.apple.com/en-us/149034 https://support.apple.com/en-us/149035 https://support.apple.com/en-us/149036 https://support.apple.com/en-us/149037 https://support.apple.com/en-us/149038 https://support.apple.com/en-us/149041 https://support.apple.com/en-us/149042 https://support.apple.com/en-us/149043