Is CVE-2025-14859 actively exploited?

No active exploitation of CVE-2025-14859 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2025-14859 be exploited remotely?

No. CVE-2025-14859 requires physical access to exploit.

What is the CVSS score of CVE-2025-14859?

CVE-2025-14859 has a CVSS score of 7.0 (HIGH).

HOME VULNERABILITIESCVE-2025-14859

HIGH

CVE-2025-14859

CWE-327Published: April 7, 2026· Updated: Apr 8, 2026

7.0

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:3.2th

Official 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.

NVD Source

Technical Analysis

CVE-2025-14859 requires local access, meaning attackers must already have a foothold on the target system.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorPhysical

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeX

Impact

Confidentiality

Integrity

Availability

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