CVE-2026-65412

Apple Null Pointer Dereference Leads to Denial of Service in Web Rendering

Published Sep 14, 2026 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Description

A null pointer dereference was addressed with improved input validation. 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, visionOS 27, watchOS 27. Processing web content may lead to a denial-of-service.

Analysis

Technical impact

A null pointer dereference occurs when Apple devices process web content. The flaw allows an attacker to trigger the dereference, forcing the operating system to terminate and restart. As a result, the device experiences a denial‑of‑service that disrupts normal operation. This weakness is classified as CWE‑476.

Affected Systems

Multiple Apple platforms are affected. The defect is present in iOS 26.7 and 27, iPadOS 26.7 and 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, visionOS 27, and watchOS 27. All devices running these releases or earlier are susceptible until a later update is installed.

Risk and Exploitability

The CVSS score of 6.5 indicates moderate severity, while the EPSS score of <1% suggests a low probability of exploitation. The vulnerability can be triggered simply by processing arbitrary web content, so any device that renders such content could be targeted. Although the issue is not listed in CISA’s KEV catalog, the denial‑of‑service impact remains significant for end‑users and services that rely on continuous device availability.

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

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: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

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

Update iOS, iPadOS, watchOS, macOS, and visionOS to the latest releases that include the fix (e.g., iOS 26.7/27, iPadOS 26.7/27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, visionOS 27, watchOS 27).
If a device cannot be updated immediately, remove it from networks where it may receive untrusted web content or disable WebKit‑based browsing until the patch is applied.
Configure device restrictions or apply configuration profiles to disable the affected web‑rendering features until the operating system is patched.

Generated by OpenCVE AI on September 20, 2026 at 18:32 UTC.

Tracking

Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

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% (0.469% probability within 30 days)

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://support.apple.com/en-us/149034
https://support.apple.com/en-us/149035
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 7:00 PM Title updated View changes

Type	Values Removed	Values Added
Title		Apple Null Pointer Dereference Leads to Denial of Service in Web Rendering

Sep 16, 2026 3:00 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:visionos:::::::: cpe:2.3:o:apple:watchos::::::::
Vendors & Products		Apple ipados Apple iphone Os

Sep 16, 2026 10:00 AM Title updated View changes

Type	Values Removed	Values Added
Title	Null Pointer Dereference Leading to Denial of Service in Apple iOS, iPadOS, macOS, visionOS, and watchOS

Sep 15, 2026 7:30 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		cvssV3_1 `{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Sep 15, 2026 9:30 AM Title updated. Weaknesses updated View changes

Type	Values Removed	Values Added
Title		Null Pointer Dereference Leading to Denial of Service in Apple iOS, iPadOS, macOS, visionOS, and watchOS
Weaknesses		CWE-476

Sep 15, 2026 1:15 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 visionos Apple watchos
Vendors & Products		Apple Apple ios And Ipados Apple macos Apple visionos Apple watchos

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

Type	Values Removed	Values Added
Description		A null pointer dereference was addressed with improved input validation. 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, visionOS 27, watchOS 27. Processing web content may lead to a denial-of-service.
References		https://support.apple.com/en-us/149034 https://support.apple.com/en-us/149035 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