CVE-2026-6232

Out-of-bounds write in LR11xx Transceiver

MEDIUM
5.2
CVSS Score
Published: October 12, 2026 at 05:16 PM UTC
Updated: October 16, 2026 at 07:56 PM UTC
5 products affected across 1 vendorLR1121 TransceiverLR1120 TransceiverLR1121 Modem E

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Severity
MEDIUM5.2
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

0
Vendor states this is fixed in A1_0303 (unaffected)
0
Vendor states this is fixed in A2_0101 (unaffected)
0
Vendor states this is fixed in A3_0101 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.2MEDIUMSemtech
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-787

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