{"id":"CVE-2026-6232","title":"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 pas…","summary":"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 pas…","severity":"medium","cvss":5.2,"cvssVector":"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","cwe":["CWE-787"],"vendor":"Semtech","product":"LR1110 Transceiver","affected":["lr1110_transceiver < 0x0403","lr1110_modem-e < 2.1.1","lr1120_transceiver < 0x0203","lr1121_transceiver < 0x0105","lr1121_modem-e < 2.1.1"],"published":"2026-10-12","updated":"2026-10-16","sourceUpdated":"2026-10-16T19:56:15.773","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-6232","references":[{"url":"https://www.semtech.com/company/security/security-bulletins/sem-psa-2026-002-lr11xx-security-advisory","label":"security@sierrawireless.com"}],"tags":["nvd","cve.org"],"epss":0.00167,"epssPercentile":0.05876,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-15T17:57:51.146102Z"},"cvssSource":"cna","ingestedAt":"2026-10-12T19:01:57.228Z","slug":"CVE-2026-6232","body":"## Overview\n\nAn 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":28.6,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":220783,"id":"CVE-2026-6232","ts":1792026780098,"field":"cvss","old":null,"new":"5.2"},{"seq":220782,"id":"CVE-2026-6232","ts":1792026780098,"field":"severity","old":"none","new":"medium"}]}