CVE-2025-52464: meshtastic — Fix

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.

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CVSS v3.1 Score

8.3

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

Weakness Type (CWE)

CWE-331 CWE-331

Affected Products

Vendor	Product	Versions
meshtastic	meshtastic_firmware	2.5.0 — 2.6.11

References

Advisories & Patches

https://github.com/meshtastic/firmware/commit/4bf2dd04aeeccc4ba20c79bcaad7a572aabdecad https://github.com/meshtastic/firmware/commit/55b2bbf93756fc7bbbfdbc7cbf29f88e6b637f22 https://github.com/meshtastic/firmware/commit/e5f6804421ac4b76dd31980250a505dba24c2aa6 https://github.com/meshtastic/firmware/commit/e623c70bd0c2ab9db9baf04888e19d1428310bb9 https://github.com/meshtastic/firmware/security/advisories/GHSA-gq7v-jr8c-mfr7

Frequently Asked Questions

What is CVE-2025-52464? +

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. It has a CVSS v3.1 base score of 8.3 (HIGH).

How severe is CVE-2025-52464? +

CVE-2025-52464 has a CVSS v3.1 score of 8.3 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-52464? +

CVE-2025-52464 affects products from meshtastic, specifically: meshtastic_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-52464? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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