CVE-2026-6232Out-of-bounds write in LR11xx Transceiver
Updated under an hour ago ()
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It affects Semtech LR1110 Transceiver and 4 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 5.2 MEDIUM (v4.0, CNA)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
- Weakness (CWE)
- CWE-787
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Semtech
- NVD analysis
- Deferred
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 12, 2026
Affected products
Semtech LR1110 Transceiver semtech:lr1110_transceiver (from the name) | before 0x0403; A1_0303 not affected | CNA record |
Semtech LR1110 Modem-e semtech:lr1110_modem_e (from the name) | before 2.1.1 | CNA record |
Semtech LR1120 Transceiver semtech:lr1120_transceiver (from the name) | before 0x0203; A2_0101 not affected | CNA record |
Semtech LR1121 Transceiver semtech:lr1121_transceiver (from the name) | before 0x0105; A3_0101 not affected | CNA record |
Semtech LR1121 Modem-e semtech:lr1121_modem_e (from the name) | before 2.1.1 | CNA record |
References
- https://www.semtech.com/company/security/security-bulletins/sem-psa-2026-002-lr11xx-security-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.