CVE-2025-68962: Huawei HarmonyOS Race Condition Flaw

CVE-2025-68962 Overview

CVE-2025-68962 is a multi-thread race condition vulnerability discovered in the camera framework module of Huawei HarmonyOS. This vulnerability arises from improper synchronization between concurrent threads accessing shared resources within the camera framework, potentially leading to system instability and denial of service conditions.

Critical Impact

Successful exploitation of this vulnerability may affect system availability, causing camera functionality failures or device crashes on affected HarmonyOS devices.

Affected Products

• Huawei HarmonyOS version 5.0.1
• Huawei HarmonyOS version 5.1.0

Discovery Timeline

• January 14, 2026 - CVE-2025-68962 published to NVD
• January 15, 2026 - Last updated in NVD database

Technical Details for CVE-2025-68962

Vulnerability Analysis

This vulnerability is classified as CWE-362 (Concurrent Execution using Shared Resource with Improper Synchronization), commonly known as a race condition. The flaw exists within the camera framework module of HarmonyOS, where multiple threads may simultaneously access or modify shared resources without proper locking mechanisms or synchronization primitives.

Race conditions in camera frameworks typically occur during operations such as camera initialization, preview rendering, image capture, or resource deallocation. When two or more threads attempt to access the same memory region or system resource concurrently without adequate protection, the resulting behavior becomes unpredictable and dependent on the execution timing of each thread.

The vulnerability requires local access to exploit, meaning an attacker would need to execute malicious code directly on the affected device. The high attack complexity indicates that successful exploitation depends on winning a specific race window, which may require multiple attempts or precise timing.

Root Cause

The root cause of CVE-2025-68962 stems from inadequate thread synchronization in the HarmonyOS camera framework module. This manifests as missing or improperly implemented mutex locks, semaphores, or other concurrency control mechanisms that should protect critical sections of code from simultaneous access by multiple threads.

When concurrent threads operate on shared camera resources—such as buffer queues, device handles, or state variables—without proper synchronization, the system may enter an inconsistent state. This can result in resource corruption, null pointer dereferences, or infinite loops that cause the camera subsystem or the entire device to become unresponsive.

Attack Vector

The attack vector for this vulnerability is local, requiring the attacker to have the ability to execute code on the target device. An attacker could potentially exploit this vulnerability through a malicious application installed on the device that deliberately triggers the race condition by:

1. Creating multiple threads that simultaneously invoke camera framework APIs
2. Timing API calls to coincide with critical internal state transitions
3. Rapidly opening and closing camera sessions to increase the probability of hitting the race window

The exploitation scenario involves the malicious application manipulating thread execution patterns to trigger the race condition, ultimately causing a denial of service by crashing the camera service or destabilizing the device.

Detection Methods for CVE-2025-68962

Indicators of Compromise

• Unexpected camera application crashes or freezes during normal operation
• System logs showing abnormal thread termination within camera-related processes
• Repeated camera service restarts logged in system event records
• Device instability or unresponsiveness when camera functionality is accessed

Detection Strategies

• Monitor system logs for camera framework crash dumps or ANR (Application Not Responding) events
• Implement application behavior analysis to detect unusual patterns of camera API invocations
• Deploy endpoint detection and response (EDR) solutions to identify applications exhibiting suspicious multi-threaded camera access patterns
• Review installed applications for excessive camera permission requests combined with unusual threading behavior

Monitoring Recommendations

• Enable detailed logging for the camera framework module to capture thread synchronization events
• Configure alerts for repeated camera service failures within short time periods
• Implement runtime application self-protection (RASP) to monitor camera API usage patterns
• Establish baseline metrics for normal camera framework operation to detect anomalies

How to Mitigate CVE-2025-68962

Immediate Actions Required

• Review the Huawei Security Bulletin for official patch information
• Update HarmonyOS devices to the latest available firmware version that addresses CVE-2025-68962
• Restrict installation of applications from untrusted sources to reduce exposure to potential exploit attempts
• Monitor device behavior for signs of exploitation and consider temporarily disabling camera functionality on critical devices until patched

Patch Information

Huawei has released security updates addressing this vulnerability as part of their January 2026 security bulletin. Affected users should consult the official Huawei Security Bulletin for mobile devices or the Huawei Laptop Security Bulletin for laptop devices running HarmonyOS to obtain the appropriate patches.

Organizations deploying HarmonyOS devices should prioritize testing and deployment of these updates, particularly for devices where camera functionality is critical to operations.

Workarounds

• Limit application installation to trusted sources such as the official Huawei AppGallery
• Implement mobile device management (MDM) policies to restrict camera access for untrusted applications
• Consider disabling camera functionality through device management if not required for business operations
• Monitor for abnormal resource consumption that may indicate exploitation attempts