Meshtastic allows crafting of specific NodeInfo packets that overwrite any publicKey saved in the NodeDB
Published Aug 18, 2025
9.8
CRITICALCVSS 3.1
EPSS 0.44%
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.
Affected products
-
Affected
- < 2.6.3
Default status is the baseline for the product. Each version can override it (patched versions can be marked unaffected).
| Vendor | Product | Default status | Versions |
|---|---|---|---|
| Meshtastic | Firmware | unknown | Affected
|
- < 2.6.3
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
References (4)
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-25140 Advisory
- https://github.com/meshtastic/firmware/commit/cf7f0f9d0895602df3453a4f5cfea843f4e09744 x_refsource_MISCPatch
- https://github.com/meshtastic/firmware/pull/6372 x_refsource_MISCIssue TrackingPatch
- https://github.com/meshtastic/firmware/security/advisories/GHSA-95pq-gj5v-4fg2 x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-25140 | Advisory | |
| https://github.com/meshtastic/firmware/commit/cf7f0f9d0895602df3453a4f5cfea843f4e09744 | x_refsource_MISCPatch | |
| https://github.com/meshtastic/firmware/pull/6372 | x_refsource_MISCIssue TrackingPatch | |
| https://github.com/meshtastic/firmware/security/advisories/GHSA-95pq-gj5v-4fg2 | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.
CVE.org / MITRE
CISA Vulnrichment
Red Hat
No data
GitHub
No data