CVE-2025-14859
7
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/AU:N/R:I/V:C/RE:M
Summary
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
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Semtech | LR1110 | 0 < BL2 FW 0x1001 | affected |
| Semtech | LR1120 | 0 < BL2 FW 0x2001 | affected |
| Semtech | LR1121 | 0 < BL2 FW 0x2101 | affected |
Weaknesses
- CWE-327: CWE-327 Use of a Broken or Risky Cryptographic Algorithm
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: total
References
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