{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:gnu:libredwg:0.10:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0.10"
              },
              {
                "last_affected": "0.10"
              }
            ],
            "source": "CPE_STRING"
          },
          "events": [
            {
              "introduced": "d5a51c01023d5585ddf3dd17c83dbb3c81efc97e"
            },
            {
              "last_affected": "d5a51c01023d5585ddf3dd17c83dbb3c81efc97e"
            }
          ],
          "repo": "https://github.com/libredwg/libredwg",
          "type": "GIT"
        }
      ],
      "versions": [
        "0.10"
      ]
    }
  ],
  "database_specific": {},
  "details": "A heap based buffer overflow vulnerability exits in GNU LibreDWG 0.10 via bit_read_RC ../../src/bits.c:318.",
  "id": "CVE-2020-21843",
  "modified": "2026-07-08T05:38:13.241895167Z",
  "published": "2021-05-17T22:15:07.437Z",
  "references": [
    {
      "type": "WEB",
      "url": "http://gnu.com"
    },
    {
      "type": "FIX",
      "url": "https://github.com/LibreDWG/libredwg/issues/188#issuecomment-574493857"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}