CVE-2026-6232

Out-of-bounds write in LR11xx Transceiver

Published Oct 12, 2026 CVSS 4.0 · 5.2 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Semtech
Published
Updated
Oct 15, 2026, 6:04 PM
Reserved
Apr 13, 2026, 4:02 PM
Status
Deferred
Published
Oct 12, 2026, 6:17 PM
Modified
Oct 16, 2026, 7:56 PM