FKIE_CVE-2026-32724

Vulnerability from fkie_nvd - Published: 2026-03-16 14:19 - Updated: 2026-06-17 10:36
Severity
5.3 (Medium) - CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
PX4 autopilot is a flight control solution for drones. Prior to 1.17.0-rc1, a heap-use-after-free is detected in the MavlinkShell::available() function. The issue is caused by a race condition between the MAVLink receiver thread (which handles shell creation/destruction) and the telemetry sender thread (which polls the shell for available output). The issue is remotely triggerable via MAVLink SERIAL_CONTROL messages (ID 126), which can be sent by an external ground station or automated script. This vulnerability is fixed in 1.17.0-rc1.
References
security-advisories@github.comhttps://github.com/PX4/PX4-Autopilot/security/advisories/GHSA-j5w2-w79c-mqrwExploit, Vendor Advisory
Impacted products
Vendor Product Version
dronecode px4_drone_autopilot *
dronecode px4_drone_autopilot 1.17.0
dronecode px4_drone_autopilot 1.17.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "PX4-Autopilot",
          "vendor": "PX4",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.17.0-rc1"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:dronecode:px4_drone_autopilot:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "2FC2D6F1-D77D-44C2-A99C-55CB5A4474B9",
              "versionEndExcluding": "1.17.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:dronecode:px4_drone_autopilot:1.17.0:alpha1:*:*:*:*:*:*",
              "matchCriteriaId": "033A0A82-2986-44D5-A712-47B8D43407FF",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:dronecode:px4_drone_autopilot:1.17.0:beta1:*:*:*:*:*:*",
              "matchCriteriaId": "3F2EA96E-BC3A-42AB-B81B-53D5872B2296",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "PX4 autopilot is a flight control solution for drones. Prior to 1.17.0-rc1, a heap-use-after-free is detected in the MavlinkShell::available() function. The issue is caused by a race condition between the MAVLink receiver thread (which handles shell creation/destruction) and the telemetry sender thread (which polls the shell for available output). The issue is remotely triggerable via MAVLink SERIAL_CONTROL messages (ID 126), which can be sent by an external ground station or automated script. This vulnerability is fixed in 1.17.0-rc1."
    },
    {
      "lang": "es",
      "value": "El piloto autom\u00e1tico PX4 es una soluci\u00f3n de control de vuelo para drones. Previo a la versi\u00f3n 1.17.0-rc1, se detecta un uso despu\u00e9s de liberaci\u00f3n en el heap en la funci\u00f3n MavlinkShell::available(). El problema es causado por una condici\u00f3n de carrera entre el hilo receptor de MAVLink (que gestiona la creaci\u00f3n/destrucci\u00f3n del shell) y el hilo emisor de telemetr\u00eda (que consulta el shell en busca de salida disponible). El problema puede ser activado remotamente a trav\u00e9s de mensajes MAVLink SERIAL_CONTROL (ID 126), los cuales pueden ser enviados por una estaci\u00f3n terrestre externa o un script automatizado. Esta vulnerabilidad est\u00e1 corregida en la versi\u00f3n 1.17.0-rc1."
    }
  ],
  "id": "CVE-2026-32724",
  "lastModified": "2026-06-17T10:36:16.500",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-32724",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-03-16T20:08:23.812031Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-03-16T14:19:43.203",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "url": "https://github.com/PX4/PX4-Autopilot/security/advisories/GHSA-j5w2-w79c-mqrw"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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