VULNERABILITY INTELLIGENCE

CVE-2025-55293

CVSS score9.4 CRITICAL
EPSS probability0.46%
CISA KEVNot currently listed
Published2025-08-18
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

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.

Weakness classification

  • security-advisories@github.com: CWE-287
  • nvd@nist.gov: NVD-CWE-noinfo

Primary references