CVE-2025-14859: Semtech LR11xx Secure Boot Bypass
Semtech · LR1110
Vendor fix available · Affected: Semtech LR1110 · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 1% of scored CVEs
DescriptionCVE.org
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 products3
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Semtech · LR1110before BL2 FW 0x1001
- Semtech · LR1120before BL2 FW 0x2001
- Semtech · LR1121before BL2 FW 0x2101
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Published
- April 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2025-14859 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.