CVE-2025-68963: Huawei EMUI Information Disclosure Flaw

CVE-2025-68963 Overview

CVE-2025-68963 is a man-in-the-middle (MITM) attack vulnerability discovered in the Clone module of Huawei EMUI and HarmonyOS operating systems. This cryptographic vulnerability enables attackers with adjacent network access to intercept and potentially read confidential data during clone operations, compromising the confidentiality of sensitive information being transferred between devices.

Critical Impact

Successful exploitation of this vulnerability may affect service confidentiality, allowing attackers to intercept sensitive data during device cloning operations.

Affected Products

• Huawei EMUI 15.0.0
• Huawei HarmonyOS 4.3.1

Discovery Timeline

• 2026-01-14 - CVE-2025-68963 published to NVD
• 2026-01-15 - Last updated in NVD database

Technical Details for CVE-2025-68963

Vulnerability Analysis

This vulnerability resides in the Clone module, a feature commonly used for migrating data between Huawei devices. The weakness allows an attacker positioned on the same local network segment to intercept communications during the cloning process. The adjacent network attack vector requires the attacker to have access to the same physical or logical network as the target devices, limiting remote exploitation but enabling effective attacks in shared network environments such as public WiFi, corporate networks, or home networks.

The vulnerability is associated with CWE-521 (Weak Password Requirements), suggesting that insufficient credential protection or authentication mechanisms in the Clone module's communication protocol create the conditions for MITM interception. The high attack complexity indicates that specific conditions must be met for successful exploitation, but once achieved, the impact on confidentiality is significant.

Root Cause

The root cause stems from weak password requirements and potentially inadequate cryptographic protections in the Clone module's data transfer mechanism. This weakness allows an attacker to position themselves between two communicating devices and intercept the data being cloned, which may include contacts, messages, photos, application data, and other sensitive personal information stored on the device.

Attack Vector

The attack requires adjacent network access, meaning the attacker must be on the same network segment as the target devices. The attacker would typically:

1. Position themselves on the same network as the victim's devices during a clone operation
2. Employ network interception techniques such as ARP spoofing or rogue access points
3. Intercept the clone module's communication channel between the source and destination devices
4. Capture and potentially decrypt sensitive data being transferred due to weak authentication mechanisms

The vulnerability does not require user interaction or special privileges, though the high attack complexity suggests timing and network positioning are critical factors for successful exploitation.

Detection Methods for CVE-2025-68963

Indicators of Compromise

• Unusual ARP traffic or ARP cache poisoning attempts on networks where Huawei devices are performing clone operations
• Unexpected network connections or traffic interception attempts during device migration activities
• Presence of rogue access points mimicking legitimate networks in proximity to clone operations
• Anomalous network behavior during Huawei Phone Clone or similar data transfer sessions

Detection Strategies

• Monitor network traffic for signs of MITM attacks including ARP spoofing, DNS hijacking, or SSL stripping attempts
• Implement network intrusion detection systems (IDS) to identify suspicious traffic patterns during device clone operations
• Deploy endpoint detection and response (EDR) solutions on corporate networks to detect anomalous connection attempts

Monitoring Recommendations

• Enable logging for network authentication events and analyze for failed or suspicious authentication attempts
• Monitor for unexpected devices appearing on the network during clone operations
• Implement network segmentation to isolate device migration activities from general network traffic

How to Mitigate CVE-2025-68963

Immediate Actions Required

• Update affected Huawei EMUI and HarmonyOS devices to the latest available security patch level
• Avoid performing device clone operations on untrusted or public networks
• Ensure clone operations are conducted on secure, private networks with no unauthorized users
• Review the Huawei Security Bulletin 2026 for specific patch information

Patch Information

Huawei has addressed this vulnerability in their January 2026 security bulletin. Users should update their devices to receive the security fix. The patch information and affected version details are available in the official Huawei Security Bulletin.

Workarounds

• Perform clone operations only on trusted, private networks with strong encryption (WPA3 preferred)
• Use wired connections instead of WiFi when possible during device migration
• Temporarily disable the Clone module feature if not actively needed
• Enable additional network security measures such as VPN when cloning must be performed on less trusted networks
• Verify network integrity before initiating any clone operation by checking for rogue access points or suspicious devices