VULNERABILITY INTELLIGENCE
CVE-2025-14859
EPSS probability0.11%
CISA KEVNot currently listed
Published2026-04-07
Last modified2026-07-24
Description
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.
Weakness classification
- security@sierrawireless.com: CWE-327