CVE-2024-51346: Eufy Homebase 2 Information Disclosure

CVE-2024-51346 Overview

CVE-2024-51346 affects the Eufy Homebase 2 smart home hub running firmware version 3.3.4.1h. The flaw resides in the device's cryptographic scheme and allows a local attacker to obtain sensitive information. The weakness is classified under CWE-330: Use of Insufficiently Random Values, indicating predictable or weak random value generation in cryptographic operations. Successful exploitation exposes confidential data processed by the hub, which coordinates Eufy security cameras and smart home devices.

Critical Impact

A local attacker can defeat the cryptographic protections on the Eufy Homebase 2 to extract sensitive information processed or stored by the device.

Affected Products

• Eufy Homebase 2 firmware version 3.3.4.1h
• Eufy smart home ecosystem devices paired with the affected Homebase 2
• Deployments using the default cryptographic configuration shipped with firmware 3.3.4.1h

Discovery Timeline

• 2026-03-25 - CVE-2024-51346 published to NVD
• 2026-03-25 - Last updated in NVD database

Technical Details for CVE-2024-51346

Vulnerability Analysis

The vulnerability stems from a weak cryptographic scheme implemented in Eufy Homebase 2 firmware 3.3.4.1h. CWE-330 indicates the implementation uses insufficiently random values where strong entropy is required. An attacker with local access can leverage this predictability to reverse, derive, or bypass cryptographic protections.

The attack requires local access but no privileges or user interaction. Once the cryptographic scheme is undermined, the attacker reads sensitive information that the device assumes is confidential. This may include credentials, encryption keys, or device pairing material used across the Eufy ecosystem.

The impact extends beyond the Homebase itself. Because the Homebase 2 brokers communication between cameras, sensors, and the Eufy cloud, weak cryptography on the hub can undermine the confidentiality and integrity of the entire connected security deployment.

Root Cause

The root cause is the use of insufficiently random values within the device's cryptographic routines [CWE-330]. Predictable seeds, weak key derivation, or low-entropy random number generation reduce the effective strength of encryption operations. An attacker who understands the algorithm can recompute protected values without brute-forcing the full keyspace.

Attack Vector

The attack vector is local. An adversary must have local interaction with the Homebase 2, either through physical access, a compromised device on the same trusted interface, or by recovering firmware artifacts. No authentication or user interaction is required to extract sensitive information once local access is established.

No public exploit code is listed in the enriched data. Technical details are documented in the GitHub CVE-2024-51346 Details writeup and the broader Eufy Ecosystem Security Research README.

Detection Methods for CVE-2024-51346

Indicators of Compromise

• Unexpected local console, UART, or debug interface activity on Eufy Homebase 2 units
• Presence of unauthorized firmware extraction tooling on network segments hosting the Homebase
• Anomalous pairing or re-pairing events for Eufy cameras and sensors tied to a Homebase running firmware 3.3.4.1h

Detection Strategies

• Inventory all Eufy Homebase 2 devices and identify units still running firmware 3.3.4.1h
• Monitor LAN traffic to and from the Homebase for unexpected clients attempting direct local communication
• Correlate physical access logs with any unscheduled reboot, factory reset, or firmware activity on the hub

Monitoring Recommendations

• Log and alert on new MAC addresses appearing on the IoT VLAN that hosts Eufy devices
• Capture and review Eufy mobile app pairing notifications for unauthorized enrollments
• Track firmware version reporting from the Eufy management app to confirm patched state over time

How to Mitigate CVE-2024-51346

Immediate Actions Required

• Update Eufy Homebase 2 to the latest firmware released after version 3.3.4.1h through the Eufy Security app
• Place Homebase 2 devices on an isolated IoT VLAN with no direct access from untrusted user segments
• Restrict physical access to the Homebase 2 hardware to prevent local attacks against the cryptographic scheme

Patch Information

No specific vendor patch identifier is provided in the enriched CVE data. Administrators should consult the Eufy official website and the Eufy Security mobile app for the most recent firmware updates that supersede version 3.3.4.1h. Apply firmware updates as soon as they become available and verify the installed version after upgrade.

Workarounds

• Segment the Homebase 2 onto a dedicated network with strict ACLs limiting which hosts can reach it locally
• Disable or physically secure any exposed debug, USB, or service interfaces on the Homebase 2
• Rotate Eufy account credentials and re-pair cameras after firmware updates to invalidate any previously exposed key material

# Configuration example: isolate Eufy Homebase 2 on a dedicated IoT VLAN
# Example using a Linux-based router with iptables

# Allow Homebase 2 outbound to Eufy cloud only
iptables -A FORWARD -i iot0 -s 192.0.2.50 -p tcp --dport 443 -j ACCEPT

# Block lateral movement from user LAN to Homebase 2
iptables -A FORWARD -i lan0 -d 192.0.2.50 -j DROP

# Block Homebase 2 from initiating connections to the user LAN
iptables -A FORWARD -i iot0 -s 192.0.2.50 -d 192.168.1.0/24 -j DROP