{"id":"CVE-2026-6232","aliases":["EUVD-2026-97726","GHSA-p9mw-jx6h-2wjg"],"status":"published","title":"Out-of-bounds write in LR11xx Transceiver","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.","severity":{"version":"4.0","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","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00167,"percentile":0.05971,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2026-10-12T17:16:27Z","modified":"2026-10-16T19:56:15Z","products":[{"vendor":"semtech","product":"lr1110 modem-e"},{"vendor":"semtech","product":"lr1110 transceiver"},{"vendor":"semtech","product":"lr1120 transceiver"},{"vendor":"semtech","product":"lr1121 modem-e"},{"vendor":"semtech","product":"lr1121 transceiver"}],"references":[{"url":"https://www.semtech.com/company/security/security-bulletins/sem-psa-2026-002-lr11xx-security-advisory"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-6232"},{"url":"https://github.com/advisories/GHSA-p9mw-jx6h-2wjg"}],"sources":{"cve":[{"id":"CVE-2026-6232","title":"Out-of-bounds write in LR11xx Transceiver","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.","status":"published","published":"2026-10-12T17:16:27.538Z","modified":"2026-10-15T18:04:54.02Z","cvss":[{"version":"4.0","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","level":"medium","assessor":"cna"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T13:49:53.818886Z"}],"euvd":[{"id":"EUVD-2026-97726","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.","status":"published","published":"2026-10-12T17:16:27Z","modified":"2026-10-15T18:04:54Z","cvss":[{"version":"4.0","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","level":"medium"}],"updated_at":"2026-11-02T17:00:11.403253Z"}],"ghsa":[{"id":"GHSA-p9mw-jx6h-2wjg","title":"An out-of-bounds write vulnerability in the SPI host command interface of Semtech's LR11xx...","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.","status":"published","published":"2026-10-12T18:31:59Z","modified":"2026-10-12T18:32:03Z","cvss":[{"version":"4.0","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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:U/V:X/RE:M/U:X","level":"medium"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T15:13:07.940274Z"}],"nvd":[{"id":"CVE-2026-6232","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.","status":"published","published":"2026-10-12T18:17:23.333Z","modified":"2026-10-16T19:56:15.773Z","cvss":[{"version":"4.0","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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:U/V:X/RE:M/U:X","level":"medium","assessor":"secondary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:12:56.310333Z"}]}}