{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "554c0a3abf216c991c5ebddcdb2c08689ecd290b"
            },
            {
              "fixed": "ea3809f7e20bdff282b8cc1e94937d5fb9fb32c7"
            },
            {
              "fixed": "d2055332297e24c63fffda943ef7a5eefc0a6019"
            },
            {
              "fixed": "6f26cc55affd9d7f88ae2f5d12db4ecf9072c209"
            },
            {
              "fixed": "204b22c8df115370037248859bf0fa62db73a396"
            },
            {
              "fixed": "a6105ea8ca6ebbc04beaf3bcbf7dbb5985f5d395"
            },
            {
              "fixed": "4380b3860d887a13555ff024a58dfc05b490dfd6"
            },
            {
              "fixed": "3bf39f711ff27c64be8680a8938bcc5001982e81"
            }
          ],
          "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": "5.15.212"
            }
          ],
          "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-2026-64536.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: fix OOB reads in is_ap_in_tkip() IE loop\n\nThe loop in is_ap_in_tkip() iterates over IEs without verifying that\nenough bytes remain before dereferencing the IE header or its payload:\n\n- pIE-\u003eelement_id and pIE-\u003elength are read without checking that\n  i + sizeof(*pIE) \u003c= ie_length, so a truncated IE at the end of the\n  buffer causes an OOB read.\n\n- For WLAN_EID_VENDOR_SPECIFIC the code compares pIE-\u003edata + 12,\n  which requires pIE-\u003elength \u003e= 16.  For WLAN_EID_RSN it compares\n  pIE-\u003edata + 8, requiring pIE-\u003elength \u003e= 12.  Neither requirement\n  is checked.\n\nAdd the missing IE header and payload bounds checks and guard each\ndata access with an explicit pIE-\u003elength minimum, matching the\npattern established in update_beacon_info().",
  "id": "CVE-2026-64536",
  "modified": "2026-08-18T03:31:05.476516323Z",
  "published": "2026-07-27T06:36:04.736Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/204b22c8df115370037248859bf0fa62db73a396"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3bf39f711ff27c64be8680a8938bcc5001982e81"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4380b3860d887a13555ff024a58dfc05b490dfd6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6f26cc55affd9d7f88ae2f5d12db4ecf9072c209"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a6105ea8ca6ebbc04beaf3bcbf7dbb5985f5d395"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d2055332297e24c63fffda943ef7a5eefc0a6019"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ea3809f7e20bdff282b8cc1e94937d5fb9fb32c7"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64536.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64536"
    },
    {
      "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:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "staging: rtl8723bs: fix OOB reads in is_ap_in_tkip() IE loop"
}