CVE-2025-55293 — AI Deep Analysis Summary

🚨 **Essence**: CVE-2025-55293 is an **Authorization Issue** in Meshtastic firmware. 📡 It involves bypassing **public key verification**.…

🛡️ **Root Cause**: **CWE-287** (Improper Authentication). 🔍 The flaw lies in failing to properly validate public keys during the authentication process.…

📦 **Affected**: **Meshtastic** (Open-source decentralized LoRa mesh network). 💻 **Component**: Firmware. 📉 **Version**: Versions **prior to 2.6.3** are vulnerable. ✅ **Safe**: Version 2.6.3 and later.

💀 **Attacker Actions**: Hackers can **bypass public key checks**. 🔄 They can **overwrite cryptographic keys**. 📉 **Impact**: High Confidentiality & Integrity loss (C:H, I:H). Low Availability loss (A:L).…

🔓 **Exploitation Threshold**: **LOW**. 🚫 **PR:N** (No Privileges Required). 🚫 **UI:N** (No User Interaction). 📡 **AV:N** (Network Accessible). 🎯 **AC:L** (Low Complexity). Easy to exploit remotely.

🕵️ **Public Exploit**: **No**. 📄 The `pocs` field is empty. 🚫 No public Proof-of-Concept (PoC) or wild exploitation code is currently available. 🛑 Safe from immediate automated attacks.

🔍 **Self-Check**: 1. Check your Meshtastic firmware version. 📱 2. If version < **2.6.3**, you are vulnerable. 🛠️ 3. Verify if public key validation is enforced in your specific build. 📡 4.…

✅ **Fixed**: **YES**. 📅 **Published**: 2025-08-18. 🛠️ **Patch**: Update to **Meshtastic 2.6.3** or later. 🔗 **Reference**: GitHub Commit `cf7f0f9` and PR #6372. 📝 **Advisory**: GHSA-95pq-gj5v-4fg2.

🚧 **No Patch Workaround**: 1. **Isolate** vulnerable devices from untrusted networks. 🚫 2. **Disable** remote configuration if possible. 📵 3. **Monitor** logs for suspicious key overwrite attempts. 🛡️ 4.…

🔥 **Urgency**: **HIGH**. 📈 **CVSS**: High severity (C:H, I:H). 🚀 **Priority**: Patch immediately. 📅 **Deadline**: ASAP.…