{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "554c0a3abf216c991c5ebddcdb2c08689ecd290b"
            },
            {
              "fixed": "665e1ecb68b4e8419604e70a33f02d1c8b0222c6"
            },
            {
              "fixed": "87cccc2a767f17dcab71e3b9fe5ae29b5516c5ce"
            },
            {
              "fixed": "c9000c93078e5c0a5a651b077c0ec92a4bc7d580"
            },
            {
              "fixed": "1f6c9d255bdda41216b6e34c96aa2b1abee0bb84"
            },
            {
              "fixed": "3e44a7665f3abd320a80d9c64ee4a93317041b8b"
            },
            {
              "fixed": "64ec4192d9c10e96922245d4a6747304cc76b19d"
            },
            {
              "fixed": "d90b9f39f375c9826ef145605dfe97765d0ecb91"
            },
            {
              "fixed": "a1fc19d61f661d47204f095b593de507884849f7"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.12.0"
            },
            {
              "fixed": "5.10.261"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.212"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.178"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.145"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.96"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.39"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64445.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: fix WEP length underflow and OOB read in OnAuth()\n\nOnAuth() has two bugs in the shared-key authentication path.\n\nWhen the Privacy bit is set, rtw_wep_decrypt() is called without\nverifying that the frame is long enough to contain a valid WEP IV and\nICV.  Inside rtw_wep_decrypt(), length is computed as:\n\n    length = len - WLAN_HDR_A3_LEN - iv_len\n\nand then passed as (length - 4) to crc32_le().  If len is less than\nWLAN_HDR_A3_LEN + iv_len + icv_len (32 bytes), length - 4 is negative\nand, after the implicit cast to size_t, causes crc32_le() to read far\nbeyond the frame buffer.  Add a minimum length check before accessing\nthe IV field and calling the decryption path.\n\nWhen processing a seq=3 response, rtw_get_ie() stores the Challenge\nText IE length in ie_len, but the subsequent memcmp() always reads 128\nbytes regardless of ie_len.  IEEE 802.11 mandates a challenge text of\nexactly 128 bytes; reject any IE whose length field differs, matching\nthe check already applied to OnAuthClient().",
  "id": "CVE-2026-64445",
  "modified": "2026-07-28T03:56:03.926682100Z",
  "published": "2026-07-25T08:51:16.670Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1f6c9d255bdda41216b6e34c96aa2b1abee0bb84"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3e44a7665f3abd320a80d9c64ee4a93317041b8b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/64ec4192d9c10e96922245d4a6747304cc76b19d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/665e1ecb68b4e8419604e70a33f02d1c8b0222c6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/87cccc2a767f17dcab71e3b9fe5ae29b5516c5ce"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a1fc19d61f661d47204f095b593de507884849f7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c9000c93078e5c0a5a651b077c0ec92a4bc7d580"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d90b9f39f375c9826ef145605dfe97765d0ecb91"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64445.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64445"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "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": "staging: rtl8723bs: fix WEP length underflow and OOB read in OnAuth()"
}