{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "cf7f0f9d0895602df3453a4f5cfea843f4e09744"
                  }
                ],
                "source": "REFERENCES_COMMIT"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "cf7f0f9d0895602df3453a4f5cfea843f4e09744"
            }
          ],
          "repo": "https://github.com/meshtastic/firmware",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-95pq-gj5v-4fg2"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-287"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/55xxx/CVE-2025-55293.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "range": [
              {
                "fixed": "2.6.3"
              }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StringRangeExpression"
          }
        ]
      },
      {
        "extracted_events": [
          {
            "range": [
              {
                "fixed": "2.6.3"
              },
              {
                "fixed": "2.6.3"
              }
            ],
            "source": "DESCRIPTION"
          }
        ]
      }
    ]
  },
  "details": "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 'if (p.public_key.size \u003e 0) {', clearing the existing publicKey (and resetting the size to 0) for a known node. Then a new key bypasses 'if (info-\u003euser.public_key.size \u003e 0) {', and this malicious key is stored in NodeDB. This vulnerability is fixed in 2.6.3.",
  "id": "CVE-2025-55293",
  "modified": "2026-10-28T02:31:10.802205515Z",
  "published": "2025-08-18T17:24:35.254Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/55xxx/CVE-2025-55293.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/meshtastic/firmware/security/advisories/GHSA-95pq-gj5v-4fg2"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-55293"
    },
    {
      "type": "FIX",
      "url": "https://github.com/meshtastic/firmware/commit/cf7f0f9d0895602df3453a4f5cfea843f4e09744"
    },
    {
      "type": "FIX",
      "url": "https://github.com/meshtastic/firmware/pull/6372"
    }
  ],
  "schema_version": "1.9.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Meshtastic allows crafting of specific NodeInfo packets that overwrite any publicKey saved in the NodeDB"
}