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CVE-2025-55293

Meshtastic allows crafting of specific NodeInfo packets that overwrite any publicKey saved in the NodeDB PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
meshtastic / firmwareaffected < 2.6.3

CWE

CWE-287

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.