CVE-2025-14859: Semtech LR11xx Secure Boot Bypass
The Semtech LR11xx LoRa transceivers implement secure boot functionality using digital signatures to authenticate firmware. However, the implementation uses a non-standard cryptographic hashing algorithm that is vulnerable to second preimage attacks. An attacker with physical access to the device can exploit this weakness to generate a malicious firmware image with a hash collision, bypassing the secure boot verification mechanism and installing arbitrary unauthorized firmware on the device.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-14859?
The severity of CVE-2025-14859 is rated as high with a score of 7.
How do I fix CVE-2025-14859?
To fix CVE-2025-14859, update the firmware of the Semtech LR11xx LoRa transceiver to a version that uses a standard cryptographic hashing algorithm.
What type of attack is associated with CVE-2025-14859?
CVE-2025-14859 is associated with second preimage attacks due to a non-standard cryptographic hashing algorithm.
What devices are affected by CVE-2025-14859?
The devices affected by CVE-2025-14859 are the Semtech LR11xx LoRa transceivers.
Is physical access required to exploit CVE-2025-14859?
Yes, physical access to the device is required to exploit CVE-2025-14859.