Security advisory

{
  "id": "fe83c1bbd3649d0fba046ed030e2ab1fe4b1f99e25de1ccf99694dc8c3d43afd",
  "url": "https://osv.dev/vulnerability/CVE-2023-40857",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2023-40857",
    "summary": "Buffer Overflow vulnerability in VirusTotal yara v.4.3.2 allows a remote attacker to execute arbtirary code via the yr_execute_cod function in the exe.c component.",
    "evidence": "osv:CVE-2023-40857",
    "products": [],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2023-40857",
      "aliases": [
        "CVE-2023-40857"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/virustotal/yara",
              "type": "GIT",
              "events": [
                {
                  "introduced": "d1ff3ecc465d7ed882943fd1278dd8981b704f02"
                },
                {
                  "last_affected": "d1ff3ecc465d7ed882943fd1278dd8981b704f02"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:virustotal:yara:4.3.2:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.3.2"
                      },
                      {
                        "last_affected": "4.3.2"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4.3.2",
            "v4.3.2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-40857.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:21.813723581Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/40xxx/CVE-2023-40857.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-40857",
        "https://github.com/VirusTotal/yara/issues/1945"
      ],
      "provider_metadata": {
        "cna_assigner": "mitre",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/40xxx/CVE-2023-40857.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-40857",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 488021,
  "published_at": "2023-08-28T00:00:00+00:00"
}