CVE-2026-65402: Apple iPadOS Use After Free Vulnerability

CVE-2026-65402 Overview

CVE-2026-65402 is a use-after-free vulnerability [CWE-416] affecting multiple Apple operating systems. A malicious application can trigger unexpected system termination by exploiting improper memory management in an affected component. Apple addressed the issue through improved memory handling across its platform lineup.

The vulnerability requires local access with low privileges and no user interaction. Successful exploitation impacts availability, causing denial-of-service through system termination. Apple has released coordinated patches spanning iOS, iPadOS, macOS, tvOS, visionOS, and watchOS.

Critical Impact
A local application can trigger a use-after-free condition leading to unexpected system termination across iOS, iPadOS, macOS, tvOS, visionOS, and watchOS devices.

Affected Products

Apple iOS and iPadOS (fixed in iOS 26.7, iPadOS 26.7, iOS 27, iPadOS 27)
Apple macOS (fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7)
Apple tvOS 27, visionOS 27, watchOS 27

Discovery Timeline

2026-09-14 - CVE CVE-2026-65402 published to NVD
2026-09-16 - Last updated in NVD database

Technical Details for CVE-2026-65402

Vulnerability Analysis

The flaw is a use-after-free condition [CWE-416] in an unspecified Apple platform component shared across iOS, iPadOS, macOS, tvOS, visionOS, and watchOS. Apple's advisory states the issue was resolved with improved memory management. A local application invoking the vulnerable code path can dereference a freed object, causing memory corruption that terminates the affected system process.

The attack requires local access with low privileges but no user interaction. Impact is limited to availability; confidentiality and integrity are not affected. Because the flaw resides in shared platform code, it spans Apple's entire OS portfolio.

Root Cause

Use-after-free vulnerabilities occur when an application continues to reference memory after it has been released. Subsequent dereferences of the dangling pointer read or write attacker-influenced data, corrupting internal state. In this case, the corruption is sufficient to crash the system process handling the request.

Attack Vector

Exploitation requires code execution on the target device through an installed application. The malicious app invokes the vulnerable API in a sequence that frees an internal object and then triggers reuse of the stale reference. The resulting corruption produces unexpected system termination. Apple has not disclosed the affected component or a working proof-of-concept. See the Apple Support advisories for platform-specific details.

Detection Methods for CVE-2026-65402

Indicators of Compromise

Repeated unexpected system reboots or process crashes on Apple devices running vulnerable OS versions
Crash reports referencing memory access violations or freed object dereferences in system logs
Applications repeatedly invoking APIs immediately before system termination events

Detection Strategies

Collect and centrally analyze crash logs from managed Apple endpoints using MDM telemetry
Correlate application install events with subsequent crash patterns to identify suspicious apps
Baseline normal crash rates per device and alert on statistically significant deviations

Monitoring Recommendations

Ingest macOS unified logs and iOS/iPadOS crash reports into a central data lake for correlation
Monitor for third-party applications from untrusted sources requesting elevated entitlements
Track OS version compliance across the fleet to identify unpatched devices

How to Mitigate CVE-2026-65402

Immediate Actions Required

Update all Apple devices to the fixed versions listed in the vendor advisories as soon as feasible
Prioritize devices used by high-value users and any device permitting sideloaded or enterprise-signed applications
Restrict installation of untrusted applications through MDM configuration profiles

Patch Information

Apple fixed CVE-2026-65402 in iOS 26.7, iPadOS 26.7, iOS 27, iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, and watchOS 27. Refer to the Apple Support Document 149034 and related advisories 149035 through 149043 for platform-specific update instructions.

Workarounds

No vendor-supplied workaround exists; apply the security update
Limit application installation to vetted sources such as the App Store to reduce exposure
Enforce MDM policies that block sideloading and unknown enterprise developer certificates

bash

# Verify current OS version on macOS
sw_vers -productVersion

# Trigger software update check on macOS
sudo softwareupdate --list
sudo softwareupdate --install --all --restart