CVE-2025-55293

{"id": "CVE-2025-55293", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.4, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.5, "exploitabilityScore": 3.9}, {"type": "Primary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2025-08-18T18:15:39.590", "references": [{"url": "https://github.com/meshtastic/firmware/commit/cf7f0f9d0895602df3453a4f5cfea843f4e09744", "tags": ["Patch"], "source": "[email protected]"}, {"url": "https://github.com/meshtastic/firmware/pull/6372", "tags": ["Patch", "Issue Tracking"], "source": "[email protected]"}, {"url": "https://github.com/meshtastic/firmware/security/advisories/GHSA-95pq-gj5v-4fg2", "tags": ["Vendor Advisory"], "source": "[email protected]"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-287"}]}, {"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "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 'if (p.public_key.size > 0) {', clearing the existing publicKey (and resetting the size to 0) for a known node. Then a new key bypasses 'if (info->user.public_key.size > 0) {', 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 > 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->user.public_key.size > 0) {\", y esta clave maliciosa se almacena en NodeDB. Esta vulnerabilidad se corrigi\u00f3 en la versi\u00f3n 2.6.3."}], "lastModified": "2025-10-17T17:48:30.923", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:meshtastic:meshtastic_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F1F1161D-D34D-4B3A-873A-95D46219EE5D", "versionEndExcluding": "2.6.3"}], "operator": "OR"}]}], "sourceIdentifier": "[email protected]"}