CVE-2026-65344

Out-of-Bounds Write in Video Parsing Causes Application Crash

Published Sep 14, 2026 CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Description

An out-of-bounds write issue was addressed with improved bounds checking. 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. Processing a maliciously crafted video file may lead to unexpected app termination.

Analysis

Technical impact

An out‑of‑bounds write issue was addressed with improved bounds checking. Processing a maliciously crafted video file may lead to unexpected app termination, terminating the application or process. This results in a loss of availability rather than code execution or data exposure.

Affected Systems

Apple iOS, Apple iPhone OS, iOS 26.7 and 27; Apple iPadOS, iPadOS 26.7 and 27; Apple macOS, Golden Gate 27, Sequoia 15.8, and Tahoe 26.7; Apple tvOS 27; Apple visionOS 27 are all affected by this out‑of‑bounds write.

Risk and Exploitability

The EPSS score is < 1% and the vulnerability is not listed in the CISA KEV catalog, indicating no known active exploitation today. The likely attack vector is local or involves a user or service processing a video file, as the description does not mention a remote exploitation condition. The risk is therefore limited to denial of service through application termination, but because the flaw affects a broad range of Apple platforms it could impact mission‑critical or enterprise devices if not patched.

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

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::::::::

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	—

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

Apply the latest security update for the affected versions of iOS, iPadOS, macOS, tvOS, or visionOS to fix the out‑of‑bounds write.
Until the update is installed, restrict processing of video files to a hardened sandbox or disable automatic playback of untrusted videos so that malformed files cannot trigger the crash.
Prioritize the rollout of the security update to critical or enterprise endpoints that handle video content, and schedule a rapid patch deployment.

Generated by OpenCVE AI on September 20, 2026 at 21:08 UTC.

Tracking

Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required None

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% (0.185% 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/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 9:30 PM Title updated View changes

Type	Values Removed	Values Added
Title		Out-of-Bounds Write in Video Parsing Causes Application Crash

Sep 17, 2026 7:00 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::::::::
Vendors & Products		Apple ipados Apple iphone Os

Sep 16, 2026 2:30 PM Weaknesses updated. Scoring metrics updated View changes

Type	Values Removed	Values Added
Weaknesses		CWE-787
Metrics		cvssV3_1 `{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Sep 16, 2026 12:30 PM Title updated. Weaknesses updated View changes

Type	Values Removed	Values Added
Title	Out‑of‑Bounds Write in Video Processing Causing App Termination
Weaknesses	CWE-119

Sep 15, 2026 12:00 PM Title updated. Weaknesses updated View changes

Type	Values Removed	Values Added
Title		Out‑of‑Bounds Write in Video Processing Causing App Termination
Weaknesses		CWE-119

Sep 15, 2026 12:30 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
Vendors & Products		Apple Apple ios And Ipados Apple macos Apple tvos Apple visionos

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

Type	Values Removed	Values Added
Description		An out-of-bounds write issue was addressed with improved bounds checking. 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. Processing a maliciously crafted video file may lead to unexpected app termination.
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/149038 https://support.apple.com/en-us/149041 https://support.apple.com/en-us/149042 https://support.apple.com/en-us/149043