CVE-2025-52464 Meshtastic Repeated Public and Private Keypairs
Attackers can decrypt private messages if devices use duplicated or low-entropy keys due to flawed initialization or vendor flashing.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-52464?
CVE-2025-52464 is a critical vulnerability in meshtastic firmware, published on 19 Jun 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Meshtastic is an open source mesh networking solution. In versions from 2.5.0 to before 2.6.11, the flashing procedure of several hardware vendors was resulting in duplicated public/private keys. Additionally, the Meshtastic was failing to properly initialize the internal randomness pool on some platforms, leading to possible low-entropy key generation. When users with an affected key pair sent Direct Messages, those message could be captured and decrypted by an attacker that has compiled the list of compromised keys. This issue has been patched in version 2.6.11 where key generation is delayed til the first time the LoRa region is set, along with warning users when a compromised key is detected. Version 2.6.12 furthers this patch by automatically wiping known compromised keys when found. A workaround to this vulnerability involves users doing a complete device wipe to remove vendor-cloned keys.
Weakness: CWE-331
Which versions are affected by CVE-2025-52464?
It affects 1 product.
Products include Meshtastic Meshtastic Firmware.
How do I fix CVE-2025-52464?
No fix has been published for CVE-2025-52464 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-52464 being exploited?
There is no known exploitation of CVE-2025-52464 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in meshtastic firmware
- CVE-2025-55293 Meshtastic allows crafting of specific NodeInfo packets that overwrite any publicKey saved in the NodeDB
- CVE-2025-24797 Meshtastic incorrectly hands malformed packets leads to controlled buffer overflow
- CVE-2025-55292 In Meshtastic, an attacker can spoof licensed amateur flag for a node
- CVE-2024-47078 Meshtastic firmware Authentication/Authorization Bypass via MQTT
- CVE-2026-42566 Meshtastic: Malformed UTF-8 in User.long_name broadcast over LoRa causes mesh-wide client decode failure
Sources
Also known as CVE-2025-54797, GHSA-gq7v-jr8c-mfr7.