fkie_cve-2025-55293
Vulnerability from fkie_nvd
Published
2025-08-18 18:15
Modified
2025-08-18 20:16
Severity ?
Summary
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.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"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": "2025-08-18T20:16:28.750",
"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"
}
]
},
"published": "2025-08-18T18:15:39.590",
"references": [
{
"source": "security-advisories@github.com",
"url": "https://github.com/meshtastic/firmware/commit/cf7f0f9d0895602df3453a4f5cfea843f4e09744"
},
{
"source": "security-advisories@github.com",
"url": "https://github.com/meshtastic/firmware/pull/6372"
},
{
"source": "security-advisories@github.com",
"url": "https://github.com/meshtastic/firmware/security/advisories/GHSA-95pq-gj5v-4fg2"
}
],
"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Awaiting Analysis",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-287"
}
],
"source": "security-advisories@github.com",
"type": "Primary"
}
]
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
Loading…
Loading…