Open Source Mesh Networking Solution Vulnerability in Meshtastic

CVE-2025-52464

What is CVE-2025-52464?

CVE-2025-52464 is a vulnerability found in the open-source mesh networking solution known as Meshtastic. This product is designed to facilitate communication over long distances using low-power radio frequencies, making it ideal for situations where traditional cellular or Wi-Fi networks are unavailable. The vulnerability affects versions prior to 2.6.11 and arises from the flashing procedure of hardware from multiple vendors, which results in the creation of duplicated public and private keys. Additionally, it has been identified that certain platforms within Meshtastic do not adequately initialize the internal randomness pool, meaning that low-entropy keys may be generated. If users send Direct Messages using an affected key pair, attackers could capture and decrypt these messages if they have access to a list of the compromised keys. This flaw could lead to severe privacy invasions and unauthorized interception of communications.

Potential impact of CVE-2025-52464

1. Data Exposure: The vulnerability allows attackers to capture and decrypt messages sent over the network, which could lead to unauthorized access to sensitive information shared between users.

2. Compromise of Integrity: By exploiting this vulnerability, attackers could manipulate communications, leading to misinformation or disruption of critical messages within a network.

3. Reputation Damage: Organizations using Meshtastic could suffer reputation loss and customer trust erosion if it is determined that their communications were not secure, especially in sensitive environments such as emergency services or private communications.

References