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.
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Workaround

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History

Mon, 12 Oct 2026 17:30:00 +0000

Type Values Removed Values Added
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.
Title Out-of-bounds write in LR11xx Transceiver
First Time appeared Semtech
Semtech lr1110 Modem-e
Semtech lr1110 Transceiver
Semtech lr1120 Transceiver
Semtech lr1121 Modem-e
Semtech lr1121 Transceiver
Weaknesses CWE-787
CPEs cpe:2.3:a:semtech:lr1110_modem-e:*:*:*:*:*:*:*:*
cpe:2.3:a:semtech:lr1110_transceiver:*:*:*:*:*:*:*:*
cpe:2.3:a:semtech:lr1110_transceiver:a1_0303:*:*:*:*:*:*:*
cpe:2.3:a:semtech:lr1120_transceiver:*:*:*:*:*:*:*:*
cpe:2.3:a:semtech:lr1120_transceiver:a2_0101:*:*:*:*:*:*:*
cpe:2.3:a:semtech:lr1121_modem-e:*:*:*:*:*:*:*:*
cpe:2.3:a:semtech:lr1121_transceiver:*:*:*:*:*:*:*:*
cpe:2.3:a:semtech:lr1121_transceiver:a3_0101:*:*:*:*:*:*:*
Vendors & Products Semtech
Semtech lr1110 Modem-e
Semtech lr1110 Transceiver
Semtech lr1120 Transceiver
Semtech lr1121 Modem-e
Semtech lr1121 Transceiver
References
Metrics cvssV4_0

{'score': 5.2, 'vector': 'CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/R:U/RE:M'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: Semtech

Published:

Updated: 2026-10-12T17:16:27.538Z

Reserved: 2026-04-13T16:02:12.853Z

Link: CVE-2026-6232

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-12T18:17:23.333

Modified: 2026-10-12T18:17:23.333

Link: CVE-2026-6232

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-13T00:00:13Z

Weaknesses