CVE-2026-28932: Apple macOS DOS Vulnerability

CVE-2026-28932 Overview

CVE-2026-28932 is a logic flaw in Apple macOS that results in memory corruption. Apple addressed the issue through improved state management. A local application can trigger the flaw to cause a denial of service on the affected system. The vulnerability is categorized under [CWE-400] Uncontrolled Resource Consumption. Apple resolved the issue in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, and macOS Tahoe 26.6.

Critical Impact
A local application can trigger memory corruption to crash macOS, disrupting availability on affected endpoints running unpatched macOS versions.

Affected Products

Apple macOS Sequoia (prior to 15.7.8)
Apple macOS Sonoma (prior to 14.8.8)
Apple macOS Tahoe (prior to 26.6)

Discovery Timeline

2026-07-27 - CVE-2026-28932 published to NVD
2026-07-29 - Last updated in NVD database

Technical Details for CVE-2026-28932

Vulnerability Analysis

CVE-2026-28932 stems from a logic error in a macOS component that leads to memory corruption during execution. Apple's advisory attributes the fix to improved state management, indicating the affected component failed to maintain consistent internal state across operations. The corruption path results in denial of service rather than confidentiality or integrity impact, meaning an attacker cannot leverage the flaw to leak data or execute arbitrary code based on the published impact profile.

The vulnerability requires local access and user interaction to reach the vulnerable code path. Exploitation is limited to crashing the affected process or the operating system, producing an availability impact on the target host. No public exploit code or proof-of-concept has been reported, and the issue is not listed in the CISA Known Exploited Vulnerabilities catalog.

Root Cause

The root cause is a state management defect in a macOS subsystem. When an application issues a specific sequence of operations, the component enters an inconsistent state that corrupts memory structures it relies on. Apple's remediation reworks the state transitions to prevent the vulnerable sequence from producing corrupt memory.

Attack Vector

An attacker must run a crafted application locally on the target macOS system. The application invokes the affected API in a manner that triggers the state mismanagement. Once triggered, memory corruption causes a process or system crash. Apple has not published detailed technical information identifying the affected subsystem beyond the advisory summary. Refer to the Apple Support Article #128067, Apple Support Article #128071, and Apple Support Article #128072 for vendor-provided details.

Detection Methods for CVE-2026-28932

Indicators of Compromise

Unexpected application or kernel crashes on macOS endpoints, particularly repeated crashes originating from the same non-Apple process.
Crash reports in /Library/Logs/DiagnosticReports/ referencing memory access violations or state assertions.
Installation or execution of unsigned or unfamiliar applications immediately prior to crash events.

Detection Strategies

Inventory macOS endpoints and flag hosts running versions earlier than Sequoia 15.7.8, Sonoma 14.8.8, or Tahoe 26.6 as exposed.
Correlate application launch telemetry with subsequent crash or panic events to identify locally executed triggers.
Monitor endpoint detection and response telemetry for processes that repeatedly invoke system APIs preceding process termination.

Monitoring Recommendations

Ingest macOS ReportCrash and spindump output into a centralized logging pipeline for review.
Track deployment status of the 15.7.8, 14.8.8, and 26.6 updates through mobile device management (MDM) reporting.
Alert on execution of newly introduced binaries on hosts that have not yet received the security update.

How to Mitigate CVE-2026-28932

Immediate Actions Required

Update macOS endpoints to macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, or macOS Tahoe 26.6.
Prioritize patching on multi-user systems and shared workstations where untrusted applications may run.
Restrict installation of applications from unverified developers using Gatekeeper and MDM policy.

Patch Information

Apple released fixes in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, and macOS Tahoe 26.6. Administrators can review the official advisories at Apple Support Article #128067, Apple Support Article #128071, and Apple Support Article #128072. Deploy the updates through Software Update or an MDM solution such as Jamf, Kandji, or Apple Business Manager.

Workarounds

Enforce application allowlisting to block execution of untrusted local binaries until patches are applied.
Configure Gatekeeper to require signed and notarized applications on all managed macOS endpoints.
Limit standard user accounts from installing third-party software on shared or high-value systems.

bash

# Verify macOS version and confirm patch level
sw_vers -productVersion

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