{"id":"CVE-2026-80937","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7915: bound the device EEPROM address before the EFUSE copy\n\nmt7915_mcu_get_eeprom() copies a fixed EFUSE block into the driver's\ndev->mt76.eeprom.data bu…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7915: bound the device EEPROM address before the EFUSE copy\n\nmt7915_mcu_get_eeprom() copies a fixed EFUSE block into the driver's\ndev->mt76.eeprom.data bu…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-787"],"vendor":"Linux","product":"Linux","affected":["Linux >= e57b7901469fc0b021930b83a8094baaf3d81b09 < 394e8cb56fc732d71041599cdb4e01f82cfd11c5","Linux >= e57b7901469fc0b021930b83a8094baaf3d81b09 < 5fdaf7016d7684ef756a229fd5d96b4a140eeb40","Linux >= e57b7901469fc0b021930b83a8094baaf3d81b09 < 5f48b0d752a76590e2c613aae5345c2474627d1b","Linux >= e57b7901469fc0b021930b83a8094baaf3d81b09 < 44b5adfe49499f53002737f5fe81d608c08122fc","Linux 5.8"],"published":"2026-09-11","updated":"2026-10-03","sourceUpdated":"2026-10-03T11:17:41.193","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-80937","references":[{"url":"https://git.kernel.org/stable/c/394e8cb56fc732d71041599cdb4e01f82cfd11c5","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/44b5adfe49499f53002737f5fe81d608c08122fc","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5f48b0d752a76590e2c613aae5345c2474627d1b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5fdaf7016d7684ef756a229fd5d96b4a140eeb40","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80937.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-80937"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2532388"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-80937"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80937"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-80937.mbox"},{"url":"https://git.kernel.org/stable/c/d6774f6af3711143a93281904a928a78652c8b7e"}],"tags":["nvd","cve.org","csaf","vex","red-hat","score-dispute"],"epss":0.00344,"epssPercentile":0.27734,"scores":{"nvd":8.8,"vendor":5.5,"cna":8.8},"ingestedAt":"2026-09-14T15:23:07.476Z","slug":"CVE-2026-80937","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7915: bound the device EEPROM address before the EFUSE copy\n\nmt7915_mcu_get_eeprom() copies a fixed EFUSE block into the driver's\ndev->mt76.eeprom.data buffer at the offset reported by the MCU response\n(res->addr, a device-controlled __le32) without checking it against the\nbuffer size. A malicious or malfunctioning device can report an arbitrary\naddress and drive a 16-byte out-of-bounds write past eeprom.data.\n\nReject a response whose address would place the copy outside eeprom.data\nbefore deriving the destination pointer. Devices that echo the requested\nin-bounds offset are unaffected.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · updated 2026-09-14 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80937.json)","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":215285,"id":"CVE-2026-80937","ts":1791027879805,"field":"cvss","old":"5.5","new":"8.8"},{"seq":215284,"id":"CVE-2026-80937","ts":1791027879805,"field":"severity","old":"medium","new":"high"},{"seq":202747,"id":"CVE-2026-80937","ts":1789403715435,"field":"cvss","old":"8.8","new":"5.5"},{"seq":202746,"id":"CVE-2026-80937","ts":1789403715435,"field":"severity","old":"high","new":"medium"},{"seq":183829,"id":"CVE-2026-80937","ts":1789356677582,"field":"cvss","old":"8.8","new":"6.8"},{"seq":183828,"id":"CVE-2026-80937","ts":1789356677582,"field":"severity","old":"high","new":"medium"},{"seq":153122,"id":"CVE-2026-80937","ts":1789285349116,"field":"cvss","old":null,"new":"8.8"},{"seq":153121,"id":"CVE-2026-80937","ts":1789285349116,"field":"severity","old":"none","new":"high"},{"seq":147299,"id":"CVE-2026-80937","ts":1789270208085,"field":"cvss","old":null,"new":"6.8"},{"seq":147298,"id":"CVE-2026-80937","ts":1789270208085,"field":"severity","old":"none","new":"medium"},{"seq":109042,"id":"CVE-2026-80937","ts":1789183730078,"field":"cvss","old":null,"new":"6.8"},{"seq":109041,"id":"CVE-2026-80937","ts":1789183730078,"field":"severity","old":"none","new":"medium"}]}