CVE-2025-55293

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.
Configurations

Configuration 1 (hide)

cpe:2.3:o:meshtastic:meshtastic_firmware:*:*:*:*:*:*:*:*

History

17 Oct 2025, 17:48

Type Values Removed Values Added
CPE cpe:2.3:o:meshtastic:meshtastic_firmware:*:*:*:*:*:*:*:*
Summary
  • (es) Meshtastic es una solución de red en malla de código abierto. Antes de la versión 2.6.3, un atacante podía enviar NodeInfo con una clave pública vacía y luego sobrescribirla con una nueva. El envío de una clave vacía omite "if (p.public_key.size > 0) {", borrando la clave pública existente (y restableciendo el tamaño a 0) para un nodo conocido. A continuación, una nueva clave omite "if (info->user.public_key.size > 0) {", y esta clave maliciosa se almacena en NodeDB. Esta vulnerabilidad se corrigió en la versión 2.6.3.
CWE NVD-CWE-noinfo
References () https://github.com/meshtastic/firmware/commit/cf7f0f9d0895602df3453a4f5cfea843f4e09744 - () https://github.com/meshtastic/firmware/commit/cf7f0f9d0895602df3453a4f5cfea843f4e09744 - Patch
References () https://github.com/meshtastic/firmware/pull/6372 - () https://github.com/meshtastic/firmware/pull/6372 - Patch, Issue Tracking
References () https://github.com/meshtastic/firmware/security/advisories/GHSA-95pq-gj5v-4fg2 - () https://github.com/meshtastic/firmware/security/advisories/GHSA-95pq-gj5v-4fg2 - Vendor Advisory
First Time Meshtastic meshtastic Firmware
Meshtastic

18 Aug 2025, 18:15

Type Values Removed Values Added
New CVE

Information

Published : 2025-08-18 18:15

Updated : 2025-10-17 17:48


NVD link : CVE-2025-55293

Mitre link : CVE-2025-55293

CVE.ORG link : CVE-2025-55293


JSON object : View

Products Affected

meshtastic

  • meshtastic_firmware
CWE
CWE-287

Improper Authentication

NVD-CWE-noinfo