CVE-2025-14859

תיאור (מקור, אנגלית)

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.

מדדים

CVSS 4.0

7.0 (HIGH) מקור הציון: CNA CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:I/V:C/RE:M/U:X

EPSS — סבירות ניצול

0% (אחוזון 000) נכון ל-24/9/2026

CWE

CWE-327

קישורים

• https://www.semtech.com/company/security/security-bulletins/sem-psa-2026-001