{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": [
              "cpe:2.3:a:cygwin:cygwin:1.7.2:*:*:*:*:*:*:*",
              "cpe:2.3:a:cygwin:cygwin:1.7.3:*:*:*:*:*:*:*",
              "cpe:2.3:a:cygwin:cygwin:1.7.5:*:*:*:*:*:*:*",
              "cpe:2.3:a:cygwin:cygwin:1.7.7:*:*:*:*:*:*:*",
              "cpe:2.3:a:cygwin:cygwin:1.7.8:*:*:*:*:*:*:*",
              "cpe:2.3:a:cygwin:cygwin:1.7.9:*:*:*:*:*:*:*",
              "cpe:2.3:a:cygwin:cygwin:1.7.10:*:*:*:*:*:*:*",
              "cpe:2.3:a:cygwin:cygwin:1.7.11:*:*:*:*:*:*:*",
              "cpe:2.3:a:cygwin:cygwin:1.7.12:*:*:*:*:*:*:*",
              "cpe:2.3:a:cygwin:cygwin:1.7.14:*:*:*:*:*:*:*",
              "cpe:2.3:a:cygwin:cygwin:1.7.15:*:*:*:*:*:*:*",
              "cpe:2.3:a:cygwin:cygwin:1.7.16:*:*:*:*:*:*:*",
              "cpe:2.3:a:cygwin:cygwin:1.7.17:*:*:*:*:*:*:*",
              "cpe:2.3:a:cygwin:cygwin:1.7.18:*:*:*:*:*:*:*",
              "cpe:2.3:a:cygwin:cygwin:1.7.19:*:*:*:*:*:*:*",
              "cpe:2.3:a:cygwin:cygwin:1.7.21:*:*:*:*:*:*:*",
              "cpe:2.3:a:cygwin:cygwin:1.7.22:*:*:*:*:*:*:*",
              "cpe:2.3:a:cygwin:cygwin:1.7.23:*:*:*:*:*:*:*",
              "cpe:2.3:a:cygwin:cygwin:1.7.24:*:*:*:*:*:*:*",
              "cpe:2.3:a:cygwin:cygwin:1.7.25:*:*:*:*:*:*:*",
              "cpe:2.3:a:cygwin:cygwin:1.7.26:*:*:*:*:*:*:*",
              "cpe:2.3:a:cygwin:cygwin:1.7.27:*:*:*:*:*:*:*",
              "cpe:2.3:a:cygwin:cygwin:1.7.28:*:*:*:*:*:*:*",
              "cpe:2.3:a:cygwin:cygwin:1.7.29:*:*:*:*:*:*:*",
              "cpe:2.3:a:cygwin:cygwin:1.7.31:*:*:*:*:*:*:*",
              "cpe:2.3:a:cygwin:cygwin:1.7.32:*:*:*:*:*:*:*",
              "cpe:2.3:a:cygwin:cygwin:1.7.33:*:*:*:*:*:*:*",
              "cpe:2.3:a:cygwin:cygwin:1.7.34:*:*:*:*:*:*:*",
              "cpe:2.3:a:cygwin:cygwin:1.7.35:*:*:*:*:*:*:*"
            ],
            "extracted_events": [
              {
                "introduced": "1.7.2"
              },
              {
                "last_affected": "1.7.2"
              },
              {
                "introduced": "1.7.3"
              },
              {
                "last_affected": "1.7.3"
              },
              {
                "introduced": "1.7.5"
              },
              {
                "last_affected": "1.7.5"
              },
              {
                "introduced": "1.7.7"
              },
              {
                "last_affected": "1.7.7"
              },
              {
                "introduced": "1.7.8"
              },
              {
                "last_affected": "1.7.8"
              },
              {
                "introduced": "1.7.9"
              },
              {
                "last_affected": "1.7.9"
              },
              {
                "introduced": "1.7.10"
              },
              {
                "last_affected": "1.7.10"
              },
              {
                "introduced": "1.7.11"
              },
              {
                "last_affected": "1.7.11"
              },
              {
                "introduced": "1.7.12"
              },
              {
                "last_affected": "1.7.12"
              },
              {
                "introduced": "1.7.14"
              },
              {
                "last_affected": "1.7.14"
              },
              {
                "introduced": "1.7.15"
              },
              {
                "last_affected": "1.7.15"
              },
              {
                "introduced": "1.7.16"
              },
              {
                "last_affected": "1.7.16"
              },
              {
                "introduced": "1.7.17"
              },
              {
                "last_affected": "1.7.17"
              },
              {
                "introduced": "1.7.18"
              },
              {
                "last_affected": "1.7.18"
              },
              {
                "introduced": "1.7.19"
              },
              {
                "last_affected": "1.7.19"
              },
              {
                "introduced": "1.7.21"
              },
              {
                "last_affected": "1.7.21"
              },
              {
                "introduced": "1.7.22"
              },
              {
                "last_affected": "1.7.22"
              },
              {
                "introduced": "1.7.23"
              },
              {
                "last_affected": "1.7.23"
              },
              {
                "introduced": "1.7.24"
              },
              {
                "last_affected": "1.7.24"
              },
              {
                "introduced": "1.7.25"
              },
              {
                "last_affected": "1.7.25"
              },
              {
                "introduced": "1.7.26"
              },
              {
                "last_affected": "1.7.26"
              },
              {
                "introduced": "1.7.27"
              },
              {
                "last_affected": "1.7.27"
              },
              {
                "introduced": "1.7.28"
              },
              {
                "last_affected": "1.7.28"
              },
              {
                "introduced": "1.7.29"
              },
              {
                "last_affected": "1.7.29"
              },
              {
                "introduced": "1.7.31"
              },
              {
                "last_affected": "1.7.31"
              },
              {
                "introduced": "1.7.32"
              },
              {
                "last_affected": "1.7.32"
              },
              {
                "introduced": "1.7.33"
              },
              {
                "last_affected": "1.7.33"
              },
              {
                "introduced": "1.7.34"
              },
              {
                "last_affected": "1.7.34"
              },
              {
                "introduced": "1.7.35"
              },
              {
                "last_affected": "1.7.35"
              }
            ],
            "source": "CPE_STRING"
          },
          "events": [
            {
              "introduced": "d355bcd31dbdcd283c490b77652d5d9eac717e3c"
            },
            {
              "last_affected": "d3fc6b7cd4bc784ef8ca4b1cb13b2540ff545d30"
            }
          ],
          "repo": "https://github.com/cygwin/cygwin",
          "type": "GIT"
        }
      ],
      "versions": [
        "1.7.10",
        "1.7.11",
        "1.7.12",
        "1.7.14",
        "1.7.15",
        "1.7.16",
        "1.7.17",
        "1.7.18",
        "1.7.19",
        "1.7.2",
        "1.7.21",
        "1.7.22",
        "1.7.23",
        "1.7.24",
        "1.7.25",
        "1.7.26",
        "1.7.27",
        "1.7.28",
        "1.7.29",
        "1.7.3",
        "1.7.31",
        "1.7.32",
        "1.7.33",
        "1.7.34",
        "1.7.35",
        "1.7.5",
        "1.7.7",
        "1.7.8",
        "1.7.9"
      ]
    }
  ],
  "database_specific": {
    "unresolved_ranges": [
      {
        "cpes": [
          "cpe:2.3:a:cygwin:cygwin:1.7.13:*:*:*:*:*:*:*",
          "cpe:2.3:a:cygwin:cygwin:1.7.6:*:*:*:*:*:*:*",
          "cpe:2.3:a:cygwin:cygwin:1.8.0:*:*:*:*:*:*:*"
        ],
        "extracted_events": [
          {
            "introduced": "1.7.6"
          },
          {
            "last_affected": "1.7.6"
          },
          {
            "introduced": "1.7.13"
          },
          {
            "last_affected": "1.7.13"
          },
          {
            "introduced": "1.8.0"
          },
          {
            "last_affected": "1.8.0"
          }
        ],
        "source": "CPE_STRING",
        "vendor_product": "cygwin:cygwin"
      }
    ]
  },
  "details": "Cygwin versions 1.7.2 up to and including 1.8.0 are vulnerable to buffer overflow vulnerability in wcsxfrm/wcsxfrm_l functions resulting into denial-of-service by crashing the process or potential hijack of the process running with administrative privileges triggered by specially crafted input string.",
  "id": "CVE-2017-7523",
  "modified": "2026-07-08T05:36:45.811827432Z",
  "published": "2017-07-21T22:29:00.283Z",
  "references": [
    {
      "type": "EVIDENCE",
      "url": "https://cygwin.com/ml/cygwin/2017-05/msg00149.html"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}