Vulnerability in Meshtastic Firmware
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L.
EPSS exploit prediction
EPSS: 0.006 (46.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 46.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.006 · change: +0.001
Affected products
- Meshtastic Firmware — versions > 2.5.0, < 2.6.11
- Meshtastic Firmware
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/meshtastic/firmware/security/advisories/GHSA-gq7v-jr8c-mfr7 (Patch, Vendor Advisory)
- github.com/meshtastic/firmware/commit/4bf2dd04aeeccc4ba20c79bcaad7a572aabdecad (Patch)
- github.com/meshtastic/firmware/commit/55b2bbf93756fc7bbbfdbc7cbf29f88e6b637f22 (Patch)
- github.com/meshtastic/firmware/commit/e5f6804421ac4b76dd31980250a505dba24c2aa6 (Patch)
- github.com/meshtastic/firmware/commit/e623c70bd0c2ab9db9baf04888e19d1428310bb9 (Patch)
Frequently asked questions
- What is CVE-2025-52464?
- CVE-2025-52464 is a high-severity vulnerability in Meshtastic Firmware, classified under Insufficient Entropy. CVSS score: 8.3/10. Published 2025-06-19.
- How severe is CVE-2025-52464?
- High severity. CVSS v3 base score is 8.3 out of 10.
- Is CVE-2025-52464 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.