Description

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.

INFO

Published Date :

2025-08-18T17:24:35.254Z

Last Modified :

2025-08-18T17:41:25.082Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2025-55293 vulnerability.

Vendors Products
Meshtastic
  • Firmware
  • Meshtastic Firmware
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-55293.

URL Resource
https://github.com/meshtastic/firmware/commit/cf7f0f9d0895602df3453a4f5cfea843f4e09744 cve-icon cve-icon
https://github.com/meshtastic/firmware/pull/6372 cve-icon cve-icon
https://github.com/meshtastic/firmware/security/advisories/GHSA-95pq-gj5v-4fg2 cve-icon cve-icon
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