ByteOS Network

CVE Vulnerability Details :

CVE-2025-55293

PUBLISHED

More Info Official Page

Assigner-GitHub_M

Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa

Published At-18 Aug, 2025 | 17:24

Updated At-18 Aug, 2025 | 17:41

▼CVE Numbering Authority (CNA)

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

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

Vendor

meshtastic

Product

firmware

Versions

Affected

< 2.6.3

Problem Types

Type	CWE ID	Description
CWE	CWE-287	CWE-287: Improper Authentication

Metrics

Version	Base score	Base severity	Vector
3.1	9.4	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

References

Hyperlink	Resource
https://github.com/meshtastic/firmware/security/advisories/GHSA-95pq-gj5v-4fg2	x_refsource_CONFIRM
https://github.com/meshtastic/firmware/pull/6372	x_refsource_MISC
https://github.com/meshtastic/firmware/commit/cf7f0f9d0895602df3453a4f5cfea843f4e09744	x_refsource_MISC

▼Authorized Data Publishers (ADP)

CISA ADP Vulnrichment

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Affected

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Replaced By

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Affected Products

Metrics

Metrics Other Info

Impacts

Solutions

Configurations

Workarounds

Exploits

Credits

Timeline

Replaced By

Rejected Reason

References