CVE-2025-55293
Last modified
CVE-2025-55293 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. EPSS estimates a 0.40% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Meshtastic | Meshtastic Firmware | < 2.6.3 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2025-55293?
How severe is CVE-2025-55293?
How do I fix CVE-2025-55293?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2025
- CVE-2025-55287Genealogy is a family tree PHP application. Prior to 4.4.0, …5.4
- CVE-2025-55288Genealogy is a family tree PHP application. Prior to 4.4.0, …5.4
- CVE-2025-55289Chamilo is a learning management system. Prior to version 1.…9
- CVE-2025-5529The Educenter theme for WordPress is vulnerable to Stored Cr…6.4
- CVE-2025-55291Shaarli is a minimalist bookmark manager and link sharing se…7.1
- CVE-2025-55292Meshtastic is an open source mesh networking solution. In th…8.2
- CVE-2025-55294screenshot-desktop allows capturing a screenshot of your loc…9.8
- CVE-2025-55295qBit Manage is a tool that helps manage tedious tasks in qBi…6.5
- CVE-2025-55296librenms is a community-based GPL-licensed network monitorin…5.4
- CVE-2025-55297ESF-IDF is the Espressif Internet of Things (IOT) Developmen…8.8
- CVE-2025-55298ImageMagick is free and open-source software used for editin…8.8
- CVE-2025-55299VaulTLS is a modern solution for managing mTLS (mutual TLS) …9.4
Are you affected by CVE-2025-55293?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST