{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2"
            },
            {
              "fixed": "e3a1d6eee25dc96b1d2db0ecd9d8741e92056476"
            },
            {
              "fixed": "c7336c0fba5c959249f3d793d33076b992ec3ee4"
            },
            {
              "fixed": "161ea0e5236f5f051d2d85d6c54dd08ee9dc7ba4"
            },
            {
              "fixed": "9b3145b3001fb24de1da72d1deb0bea70e5a078b"
            },
            {
              "fixed": "a550ed2117ca4709d38f713933ff924a83942e41"
            },
            {
              "fixed": "f793b67d41e5fab719c5a90baa77cbd2fe259517"
            },
            {
              "fixed": "857b3cc73f91871ae4433f8b97c4670b78f8dc96"
            },
            {
              "fixed": "438061ed1ad85e6743e2dce826671772d81089ec"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.12"
            },
            {
              "fixed": "5.10.259"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.210"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.176"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.143"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.93"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.35"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.12"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63957.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: serial: safe_serial: fix memory corruption with small endpoint\n\nMake sure that the bulk-out buffer size is at least eight bytes to avoid\nuser-controlled slab corruption in \"safe\" mode should a malicious device\nreport a smaller size.",
  "id": "CVE-2026-63957",
  "modified": "2026-07-21T03:41:59.540675298Z",
  "published": "2026-07-19T14:55:48.196Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/161ea0e5236f5f051d2d85d6c54dd08ee9dc7ba4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/438061ed1ad85e6743e2dce826671772d81089ec"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/857b3cc73f91871ae4433f8b97c4670b78f8dc96"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9b3145b3001fb24de1da72d1deb0bea70e5a078b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a550ed2117ca4709d38f713933ff924a83942e41"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c7336c0fba5c959249f3d793d33076b992ec3ee4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e3a1d6eee25dc96b1d2db0ecd9d8741e92056476"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f793b67d41e5fab719c5a90baa77cbd2fe259517"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63957.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63957"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "USB: serial: safe_serial: fix memory corruption with small endpoint"
}