MOOS essential-moos through 10.0.1 pAntler Remote Code Execution via Unauthenticated MISSION_FILE

{
  "id": "afd086ce94f40068a00cd5280a890055cdf27852c71b9c42b9d5b6a2d4eae3c0",
  "url": "https://osv.dev/vulnerability/CVE-2026-85427",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "MOOS essential-moos through 10.0.1 pAntler Remote Code Execution via Unauthenticated MISSION_FILE",
    "summary": "MOOS essential-moos pAntler through 10.0.1 contains a remote code execution vulnerability that allows unauthenticated attackers to execute arbitrary programs by publishing a crafted MISSION_FILE message to the MOOSDB. Attackers can publish a mission file containing malicious Run entries that pAntler parses and executes via execvp() without authentication validation.",
    "evidence": "osv:CVE-2026-85427",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2026-85427",
      "aliases": [
        "CVE-2026-85427"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/themoos/essential-moos",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "e219f26710927f9c155a6b0dc11e3bd5f3da6730"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:themoos:essential-moos:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "10.0.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "e219f26710927f9c155a6b0dc11e3bd5f3da6730"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-85427.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:31.495873067Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85427.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-85427",
        "https://www.vulncheck.com/advisories/moos-essential-moos-through-10.0.1-pantler-remote-code-execution-via-unauthenticated-mission-file",
        "https://github.com/themoos/essential-moos/commit/e219f26710927f9c155a6b0dc11e3bd5f3da6730",
        "https://github.com/themoos/essential-moos/pull/17",
        "https://github.com/themoos/essential-moos",
        "https://github.com/themoos/essential-moos/blob/b897ea86dba8b61412dc48ac0cfb5ff34cdaf5f6/Essentials/pAntler/Antler.cpp#L95"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-494"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85427.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-85427",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 498454,
  "published_at": "2026-09-03T22:38:22.398+00:00"
}