{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:meshtastic:meshtastic_firmware:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "F1F1161D-D34D-4B3A-873A-95D46219EE5D",
              "versionEndExcluding": "2.6.3",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Meshtastic is an open source mesh networking solution. Prior to v2.6.3, an attacker can send NodeInfo with a empty publicKey first, then overwrite it with a new key. First sending a empty key bypasses \u0027if (p.public_key.size \u003e 0) {\u0027, clearing the existing publicKey (and resetting the size to 0) for a known node. Then a new key bypasses \u0027if (info-\u003euser.public_key.size \u003e 0) {\u0027, and this malicious key is stored in NodeDB. This vulnerability is fixed in 2.6.3."
    },
    {
      "lang": "es",
      "value": "Meshtastic es una soluci\u00f3n de red en malla de c\u00f3digo abierto. Antes de la versi\u00f3n 2.6.3, un atacante pod\u00eda enviar NodeInfo con una clave p\u00fablica vac\u00eda y luego sobrescribirla con una nueva. El env\u00edo de una clave vac\u00eda omite \"if (p.public_key.size \u0026gt; 0) {\", borrando la clave p\u00fablica existente (y restableciendo el tama\u00f1o a 0) para un nodo conocido. A continuaci\u00f3n, una nueva clave omite \"if (info-\u0026gt;user.public_key.size \u0026gt; 0) {\", y esta clave maliciosa se almacena en NodeDB. Esta vulnerabilidad se corrigi\u00f3 en la versi\u00f3n 2.6.3."
    }
  ],
  "id": "CVE-2025-55293",
  "lastModified": "2025-10-17T17:48:30.923",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 9.4,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.5,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-08-18T18:15:39.590",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/meshtastic/firmware/commit/cf7f0f9d0895602df3453a4f5cfea843f4e09744"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Issue Tracking"
      ],
      "url": "https://github.com/meshtastic/firmware/pull/6372"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/meshtastic/firmware/security/advisories/GHSA-95pq-gj5v-4fg2"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-287"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}