{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-55293", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2025-08-12T16:15:30.237Z", "datePublished": "2025-08-18T17:24:35.254Z", "dateUpdated": "2025-08-18T17:41:25.082Z"}, "containers": {"cna": {"title": "Meshtastic allows crafting of specific NodeInfo packets that overwrite any publicKey saved in the NodeDB", "problemTypes": [{"descriptions": [{"cweId": "CWE-287", "lang": "en", "description": "CWE-287: Improper Authentication", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"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"}}], "references": [{"name": "https://github.com/meshtastic/firmware/security/advisories/GHSA-95pq-gj5v-4fg2", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/meshtastic/firmware/security/advisories/GHSA-95pq-gj5v-4fg2"}, {"name": "https://github.com/meshtastic/firmware/pull/6372", "tags": ["x_refsource_MISC"], "url": "https://github.com/meshtastic/firmware/pull/6372"}, {"name": "https://github.com/meshtastic/firmware/commit/cf7f0f9d0895602df3453a4f5cfea843f4e09744", "tags": ["x_refsource_MISC"], "url": "https://github.com/meshtastic/firmware/commit/cf7f0f9d0895602df3453a4f5cfea843f4e09744"}], "affected": [{"vendor": "meshtastic", "product": "firmware", "versions": [{"version": "< 2.6.3", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2025-08-18T17:24:35.254Z"}, "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."}], "source": {"advisory": "GHSA-95pq-gj5v-4fg2", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-08-18T17:41:12.799937Z", "id": "CVE-2025-55293", "options": [{"Exploitation": "poc"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-08-18T17:41:25.082Z"}}]}}

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{"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 '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 &gt; 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-&gt;user.public_key.size &gt; 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"}]}

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