CVE-2025-14857 (GCVE-0-2025-14857)
Vulnerability from cvelistv5 – Published: 2026-04-07 19:56 – Updated: 2026-04-07 20:42
VLAI
EPSS
VEX
Title
Semtech LR11xx Memory Write Access Control Bypass
Summary
An improper access control vulnerability exists in Semtech LoRa LR11xxx transceivers running early versions of firmware where the memory write command accessible via the physical SPI interface fails to enforce write protection on the program call stack. An attacker with physical access to the SPI interface can overwrite stack memory to hijack program control flow and achieve limited arbitrary code execution. However, the impact is limited to the active attack session: the device's secure boot mechanism prevents persistent firmware modification, the crypto engine isolates cryptographic keys from direct firmware access, and all modifications are lost upon device reboot or loss of physical access.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-07 20:31 UTC
CWE
- CWE-123 - Write-what-where Condition
References
1 reference
Impacted products
3 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Semtech | LR1110 |
Affected:
0 , < TRX FW 0x0402
(custom)
cpe:2.3:a:semtech:lr1110:*:*:*:*:*:*:*:* |
||
| Semtech | LR1120 |
Affected:
0 , < TRX FW 0x0202
(custom)
cpe:2.3:a:semtech:lr1120:*:*:*:*:*:*:*:* |
||
| Semtech | LR1121 |
Affected:
0 , < TRX FW 0x0104
(custom)
cpe:2.3:a:semtech:lr1121:*:*:*:*:*:*:*:* |
Date Public
2026-04-06 18:07
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.