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5 vulnerabilities found for firmware by meshtastic

CVE-2025-53627 (GCVE-0-2025-53627)
Vulnerability from nvd
Published
2025-12-29 16:18
Modified
2025-12-29 16:52
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CWE
  • CWE-1287 - Improper Validation of Specified Type of Input
Summary
Meshtastic is an open source mesh networking solution. The Meshtastic firmware (starting from version 2.5) introduces asymmetric encryption (PKI) for direct messages, but when the `pki_encrypted` flag is missing, the firmware silently falls back to legacy AES-256-CTR channel encryption. This was an intentional decision to maintain backwards compatibility. However, the end-user applications, like Web app, iOS/Android app, and applications built on top of Meshtastic using the SDK, did not have a way to differentiate between end-to-end encrypted DMs and the legacy DMs. This creates a downgrade attack path where adversaries who know a shared channel key can craft and inject spoofed direct messages that are displayed as if they were PKC encrypted. Users are not given any feedback of whether a direct message was decrypted with PKI or with legacy symmetric encryption, undermining the expected security guarantees of the PKI rollout. Version 2.7.15 fixes this issue.
References
Impacted products
Vendor Product Version
meshtastic firmware Version: >= 2.5, < 2.7.15
 Create a notification for this product.
Show details on NVD website

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CVE-2025-55293 (GCVE-0-2025-55293)
Vulnerability from nvd
Published
2025-08-18 17:24
Modified
2025-08-18 17:41
Severity ?
9.4 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
CWE
  • CWE-287 - Improper Authentication
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
meshtastic firmware Version: < 2.6.3
 Create a notification for this product.
Show details on NVD website

To clipboard 

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CVE-2024-47079 (GCVE-0-2024-47079)
Vulnerability from nvd
Published
2024-10-07 19:55
Modified
2024-10-07 20:19
Severity ?
6.4 (Medium) - CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H
CWE
  • CWE-345 - Insufficient Verification of Data Authenticity
Summary
Meshtastic is an open source, off-grid, decentralized, mesh network built to run on affordable, low-power devices. Meshtastic firmware is an open source firmware implementation for the broader project. The remote hardware module of the firmware does not have proper checks to ensure a remote hardware control message was received should be considered valid. This issue has been addressed in release version 2.5.1. All users are advised to upgrade. There are no known workarounds for this vulnerability.
References
Impacted products
Vendor Product Version
meshtastic firmware Version: < 2.5.1
 Create a notification for this product.
Show details on NVD website

To clipboard 

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CVE-2024-45038 (GCVE-0-2024-45038)
Vulnerability from nvd
Published
2024-08-27 20:36
Modified
2024-08-28 14:00
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-755 - Improper Handling of Exceptional Conditions
Summary
Meshtastic device firmware is a firmware for meshtastic devices to run an open source, off-grid, decentralized, mesh network built to run on affordable, low-power devices. Meshtastic device firmware is subject to a denial of serivce vulnerability in MQTT handling, fixed in version 2.4.1 of the Meshtastic firmware and on the Meshtastic public MQTT Broker. It's strongly suggested that all users of Meshtastic, particularly those that connect to a privately hosted MQTT server, update to this or a more recent stable version right away. There are no known workarounds for this vulnerability.
References
Impacted products
Vendor Product Version
meshtastic firmware Version: < 2.4.1
 Create a notification for this product.
Show details on NVD website

To clipboard 

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CVE-2025-53627 (GCVE-0-2025-53627)
Vulnerability from cvelistv5
Published
2025-12-29 16:18
Modified
2025-12-29 16:52
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CWE
  • CWE-1287 - Improper Validation of Specified Type of Input
Summary
Meshtastic is an open source mesh networking solution. The Meshtastic firmware (starting from version 2.5) introduces asymmetric encryption (PKI) for direct messages, but when the `pki_encrypted` flag is missing, the firmware silently falls back to legacy AES-256-CTR channel encryption. This was an intentional decision to maintain backwards compatibility. However, the end-user applications, like Web app, iOS/Android app, and applications built on top of Meshtastic using the SDK, did not have a way to differentiate between end-to-end encrypted DMs and the legacy DMs. This creates a downgrade attack path where adversaries who know a shared channel key can craft and inject spoofed direct messages that are displayed as if they were PKC encrypted. Users are not given any feedback of whether a direct message was decrypted with PKI or with legacy symmetric encryption, undermining the expected security guarantees of the PKI rollout. Version 2.7.15 fixes this issue.
References
Impacted products
Vendor Product Version
meshtastic firmware Version: >= 2.5, < 2.7.15
 Create a notification for this product.
Show details on NVD website

To clipboard 

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        {
          "lang": "en",
          "value": "Meshtastic is an open source mesh networking solution. The Meshtastic firmware (starting from version 2.5) introduces asymmetric encryption (PKI) for direct messages, but when the `pki_encrypted` flag is missing, the firmware silently falls back to legacy AES-256-CTR channel encryption. This was an intentional decision to maintain backwards compatibility. However, the end-user applications, like Web app, iOS/Android app, and applications built on top of Meshtastic using the SDK, did not have a way to differentiate between end-to-end encrypted DMs and the legacy DMs. This creates a downgrade attack path where adversaries who know a shared channel key can craft and inject spoofed direct messages that are displayed as if they were PKC encrypted. Users are not given any feedback of whether a direct message was decrypted with PKI or with legacy symmetric encryption, undermining the expected security guarantees of the PKI rollout. Version 2.7.15 fixes this issue."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1287",
              "description": "CWE-1287: Improper Validation of Specified Type of Input",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-29T16:28:55.816Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/meshtastic/firmware/security/advisories/GHSA-377p-prwp-4hwf",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/meshtastic/firmware/security/advisories/GHSA-377p-prwp-4hwf"
        }
      ],
      "source": {
        "advisory": "GHSA-377p-prwp-4hwf",
        "discovery": "UNKNOWN"
      },
      "title": "Meshtastic firmware allows forged DMs with no PKC to show up as encrypted"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-53627",
    "datePublished": "2025-12-29T16:18:29.680Z",
    "dateReserved": "2025-07-07T14:20:38.388Z",
    "dateUpdated": "2025-12-29T16:52:03.331Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}