Security advisory

{
  "id": "1b5929975a2a428f26f2b32ecf0e0a87193740363592e90722b8ddd35bc5ebb7",
  "url": "https://osv.dev/vulnerability/CVE-2021-28953",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-28953",
    "summary": "The unofficial C/C++ Advanced Lint extension before 1.9.0 for Visual Studio Code allows attackers to execute arbitrary binaries if the user opens a crafted repository.",
    "evidence": "osv:CVE-2021-28953",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-28953",
      "aliases": [
        "CVE-2021-28953"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/jbenden/vscode-c-cpp-flylint",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "7c2d21e5996ff70b537a1fa25d473e6fe0d5459a"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:c\\/c\\+\\+_advanced_lint_project:c\\/c\\+\\+_advanced_lint:*:*:*:*:*:visual_studio_code:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.9.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.8.2",
            "v1.8.1",
            "v1.8.0",
            "v1.7.1",
            "v1.7.0",
            "v.1.6.0",
            "v1.5.1",
            "v1.5.0",
            "v1.4.4",
            "v1.4.3",
            "v1.4.2",
            "v1.4.1",
            "v1.4.0",
            "v1.3.0",
            "v1.2.4",
            "v1.2.3",
            "v1.2.2",
            "v1.2.1",
            "v1.2.0",
            "v1.1.1",
            "v1.1.0",
            "v1.0.1.cd-test-4",
            "v1.0.1",
            "v1.0.1.cd-test-3",
            "v1.0.1.cd-test-2",
            "v1.0.1.cd-test",
            "v1.0.0",
            "v0.6.1",
            "v0.6.0",
            "v0.5.7",
            "v0.5.6",
            "v0.5.5",
            "v0.5.4",
            "v0.5.2",
            "v0.5.1",
            "v0.5.0",
            "v0.4.3",
            "v0.4.2",
            "v0.4.1",
            "v0.4.0",
            "v0.3.1",
            "v0.3.0",
            "v0.2.7",
            "v0.2.6",
            "v0.2.5",
            "v0.2.4",
            "v0.2.2",
            "v0.2.1",
            "v0.2.0",
            "v0.1.0",
            "v0.0.2",
            "v0.0.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-28953.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:36.974411992Z",
      "provider": "osv",
      "references": [
        "https://marketplace.visualstudio.com/items?itemName=jbenden.c-cpp-flylint",
        "https://vuln.ryotak.me/advisories/16",
        "https://github.com/jbenden/vscode-c-cpp-flylint/compare/v1.8.2...v1.9.0"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-28953",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385740,
  "published_at": "2021-03-21T05:15:12.167+00:00"
}