CVE-2026-6232: CWE-787 Out-of-bounds write in Semtech LR1110 Transceiver
Description
An out-of-bounds write vulnerability in the SPI host command interface of Semtech's LR11xx transceiver firmware where a crafted SPI host command with an oversized length field can cause the firmware to write up to 254 arbitrary bytes past the bounds of an internal, non-persistent memory buffer. Exploitation requires physical access to the device and logical access to the SPI bus.
CVSS v4.0
Score 5.2medium
Affected software
Semtech
LR1110 Transceiver
Semtech
LR1110 Modem-e
Semtech
LR1120 Transceiver
Semtech
LR1121 Transceiver
Semtech
LR1121 Modem-e
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Semtech
- Date Reserved
- 2026-04-13T16:02:12.853Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6acd1a082cdf04f656b8e807
Added to database: 10/12/2026, 17:34:00 UTC
Last updated: 10/12/2026, 17:34:00 UTC
Views: 1
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