{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "2880b86859967af710c72f7d34fb421a86a71e22"
            },
            {
              "fixed": "b329fbcf075949a038045d8e9b86ae3d5bbd8a54"
            },
            {
              "fixed": "2ae3ccb78c0a9ef5ee3d80d02ab319ac1d5af734"
            },
            {
              "fixed": "9c81bcc2c695e0082012a2a3d36a0eefaa51579c"
            },
            {
              "fixed": "3ec7437e9d11374105c2c4e47ae671537729d7e6"
            },
            {
              "fixed": "9fca68c2512a362cad258e4df12a307bb2ee4b8e"
            },
            {
              "fixed": "1ae1e1caa428844e481231f6dbe9b4f475f1d52d"
            },
            {
              "fixed": "b427c2b05222db36d32ee141609de6128e9091bb"
            },
            {
              "fixed": "304950a467d83678bd0b0f46331882e2ac23b12d"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.9.0"
            },
            {
              "fixed": "5.10.258"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.209"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.175"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.136"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.83"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.24"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "6.19.14"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43110.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: brcmfmac: validate bsscfg indices in IF events\n\nbrcmf_fweh_handle_if_event() validates the firmware-provided interface\nindex before it touches drvr-\u003eiflist[], but it still uses the raw\nbsscfgidx field as an array index without a matching range check.\n\nReject IF events whose bsscfg index does not fit in drvr-\u003eiflist[]\nbefore indexing the interface array.\n\n[add missing wifi prefix]",
  "id": "CVE-2026-43110",
  "modified": "2026-07-08T05:36:29.790858648Z",
  "published": "2026-05-06T07:40:37.250Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1ae1e1caa428844e481231f6dbe9b4f475f1d52d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2ae3ccb78c0a9ef5ee3d80d02ab319ac1d5af734"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/304950a467d83678bd0b0f46331882e2ac23b12d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3ec7437e9d11374105c2c4e47ae671537729d7e6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9c81bcc2c695e0082012a2a3d36a0eefaa51579c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9fca68c2512a362cad258e4df12a307bb2ee4b8e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b329fbcf075949a038045d8e9b86ae3d5bbd8a54"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b427c2b05222db36d32ee141609de6128e9091bb"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43110.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43110"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "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: brcmfmac: validate bsscfg indices in IF events"
}