{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "98686cd21624c75a043e96812beadddf4f6f48e5"
            },
            {
              "fixed": "9e5abb5e2ade0b6fd0e47209711115d47a255176"
            },
            {
              "fixed": "6be59da2063d5b3522bfde8aae0487ec095eb384"
            },
            {
              "fixed": "13b3c29a782033ce4a230be9e5618032813dbcd4"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.18.52"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80935.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7996: bound the device EEPROM address before the EFUSE copy\n\nmt7996_mcu_get_eeprom() derives the destination of the EFUSE/EXT block\ncopy from the address reported by the MCU response (event-\u003eaddr, a\ndevice-controlled __le32) and clamps only the copy length, never the\ndestination offset into dev-\u003emt76.eeprom.data. A malicious or\nmalfunctioning device can report an arbitrary address and drive an\nout-of-bounds write of up to MT7996_EXT_EEPROM_BLOCK_SIZE bytes past\neeprom.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.",
  "id": "CVE-2026-80935",
  "modified": "2026-09-15T03:30:40.664661199Z",
  "published": "2026-09-11T19:42:09.286Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/13b3c29a782033ce4a230be9e5618032813dbcd4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6be59da2063d5b3522bfde8aae0487ec095eb384"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9e5abb5e2ade0b6fd0e47209711115d47a255176"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80935.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80935"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "wifi: mt76: mt7996: bound the device EEPROM address before the EFUSE copy"
}