CVE-2026-28969: Apple iPadOS Use After Free Vulnerability

CVE-2026-28969 Overview

CVE-2026-28969 is a use-after-free vulnerability [CWE-416] affecting multiple Apple operating systems. The flaw allows a malicious app to trigger unexpected system termination by exploiting improper memory management. Apple addressed the issue through improved memory handling across its product line.

The vulnerability impacts iOS, iPadOS, macOS Sequoia, macOS Sonoma, macOS Tahoe, tvOS, visionOS, and watchOS. The Common Vulnerability Scoring System (CVSS) vector indicates a network-based attack vector with no privileges or user interaction required, but the impact is limited to availability degradation through process or system crashes.

Critical Impact

A locally installed application can trigger unexpected system termination across iOS, iPadOS, macOS, tvOS, visionOS, and watchOS devices, resulting in denial of service conditions.

Affected Products

• Apple iOS (versions prior to 18.7.9 and 26.5) and iPadOS (versions prior to 18.7.9 and 26.5)
• Apple macOS Sequoia (prior to 15.7.7), macOS Sonoma (prior to 14.8.7), and macOS Tahoe (prior to 26.5)
• Apple tvOS, visionOS, and watchOS (versions prior to 26.5)

Discovery Timeline

• 2026-05-11 - CVE-2026-28969 published to the National Vulnerability Database (NVD)
• 2026-05-12 - Last updated in NVD database

Technical Details for CVE-2026-28969

Vulnerability Analysis

The vulnerability is a use-after-free condition classified under [CWE-416]. Use-after-free issues occur when a program continues to reference memory after it has been freed. Subsequent access to the dangling pointer leads to undefined behavior, including process or kernel crashes.

In this case, the affected Apple component allows a local application to trigger the unsafe memory access path. The result is unexpected system termination, producing denial-of-service conditions on the device. Apple's advisories confirm the fix involves improved memory management to ensure freed memory is no longer referenced.

While the CVSS vector lists the attack vector as network, the vulnerability description states an app must trigger the condition. The impact is constrained to availability — no confidentiality or integrity compromise is documented in the advisory.

Root Cause

The root cause is improper lifecycle tracking of an internal memory object. Code paths within the affected component release the object but retain or reuse a reference to it. When that reference is later dereferenced, the resulting memory access leads to unpredictable behavior and process termination.

Attack Vector

Exploitation requires the attacker to deliver or install an application on the target device. The application then invokes the vulnerable code path to trigger the use-after-free. The Exploit Prediction Scoring System (EPSS) probability for this CVE is 0.048%, indicating low observed exploitation likelihood at this time.

Apple has not disclosed the specific component or function affected. Refer to the Apple Support Advisory #127110 and related advisories for component-level details.

Detection Methods for CVE-2026-28969

Indicators of Compromise

• Recurring unexpected system reboots or kernel panics on Apple devices running unpatched OS versions
• Crash reports referencing memory access violations within the affected system component
• Installation of recently sideloaded or untrusted applications preceding system termination events

Detection Strategies

• Inventory all Apple endpoints and identify devices running iOS/iPadOS versions earlier than 18.7.9 or 26.5, and macOS versions earlier than 15.7.7, 14.8.7, or 26.5
• Collect and review crash logs from mobile device management (MDM) telemetry for repeated process termination patterns
• Monitor application installation events for unsigned or unverified applications that correlate with crash activity

Monitoring Recommendations

• Forward macOS unified logs and iOS crash diagnostics to a centralized logging platform for correlation
• Establish baselines for system termination events per device and alert on statistical outliers
• Track patch compliance status across the Apple fleet using MDM reporting

How to Mitigate CVE-2026-28969

Immediate Actions Required

• Update all Apple devices to iOS 18.7.9, iPadOS 18.7.9, iOS 26.5, iPadOS 26.5, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, or watchOS 26.5
• Enforce patch deployment through MDM policies and verify installation across managed endpoints
• Restrict installation of untrusted applications via configuration profiles and App Store-only policies

Patch Information

Apple released patches addressing CVE-2026-28969 on multiple platforms. Patch details are documented in the official advisories: Apple Support Advisory #127110, #127111, #127115, #127116, #127117, #127118, #127119, and #127120.

Workarounds

• No official workarounds have been published by Apple — patching is the required remediation
• Limit installation privileges and require application notarization or App Store distribution where feasible
• Apply MDM restrictions to block sideloading and developer-mode installations on managed devices

# Verify current iOS/iPadOS version on a managed device via MDM query
# Example: profiles command on macOS to check OS build
sw_vers -productVersion

# macOS patch installation via softwareupdate
sudo softwareupdate --install --all --restart