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Vulnerable Software

Vulnerability Details CVE-2025-55293

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.

Exploit prediction scoring system (EPSS) score

EPSS Score 0.001

EPSS Ranking 22.9%

CVSS Severity

CVSS v3 Score 9.4

References

Products affected by CVE-2025-55293

Meshtastic » Meshtastic Firmware » Version: N/A

cpe:2.3:o:meshtastic:meshtastic_firmware:-
Meshtastic » Meshtastic Firmware » Version: 0.0.3

cpe:2.3:o:meshtastic:meshtastic_firmware:0.0.3
Meshtastic » Meshtastic Firmware » Version: 0.0.4

cpe:2.3:o:meshtastic:meshtastic_firmware:0.0.4
Meshtastic » Meshtastic Firmware » Version: 0.0.5

cpe:2.3:o:meshtastic:meshtastic_firmware:0.0.5
Meshtastic » Meshtastic Firmware » Version: 0.0.9

cpe:2.3:o:meshtastic:meshtastic_firmware:0.0.9
Meshtastic » Meshtastic Firmware » Version: 0.1.0

cpe:2.3:o:meshtastic:meshtastic_firmware:0.1.0
Meshtastic » Meshtastic Firmware » Version: 0.1.10

cpe:2.3:o:meshtastic:meshtastic_firmware:0.1.10
Meshtastic » Meshtastic Firmware » Version: 0.1.3

cpe:2.3:o:meshtastic:meshtastic_firmware:0.1.3
Meshtastic » Meshtastic Firmware » Version: 0.1.5

cpe:2.3:o:meshtastic:meshtastic_firmware:0.1.5
Meshtastic » Meshtastic Firmware » Version: 0.1.6

cpe:2.3:o:meshtastic:meshtastic_firmware:0.1.6
Meshtastic » Meshtastic Firmware » Version: 0.1.7

cpe:2.3:o:meshtastic:meshtastic_firmware:0.1.7
Meshtastic » Meshtastic Firmware » Version: 0.1.8

cpe:2.3:o:meshtastic:meshtastic_firmware:0.1.8
Meshtastic » Meshtastic Firmware » Version: 0.1.9

cpe:2.3:o:meshtastic:meshtastic_firmware:0.1.9
Meshtastic » Meshtastic Firmware » Version: 0.2.0

cpe:2.3:o:meshtastic:meshtastic_firmware:0.2.0
Meshtastic » Meshtastic Firmware » Version: 0.2.3

cpe:2.3:o:meshtastic:meshtastic_firmware:0.2.3
Meshtastic » Meshtastic Firmware » Version: 0.4.1

cpe:2.3:o:meshtastic:meshtastic_firmware:0.4.1
Meshtastic » Meshtastic Firmware » Version: 0.4.2

cpe:2.3:o:meshtastic:meshtastic_firmware:0.4.2
Meshtastic » Meshtastic Firmware » Version: 0.4.3

cpe:2.3:o:meshtastic:meshtastic_firmware:0.4.3
Meshtastic » Meshtastic Firmware » Version: 0.6.0

cpe:2.3:o:meshtastic:meshtastic_firmware:0.6.0
Meshtastic » Meshtastic Firmware » Version: 0.6.1

cpe:2.3:o:meshtastic:meshtastic_firmware:0.6.1
Meshtastic » Meshtastic Firmware » Version: 0.6.2

cpe:2.3:o:meshtastic:meshtastic_firmware:0.6.2
Meshtastic » Meshtastic Firmware » Version: 0.6.3

cpe:2.3:o:meshtastic:meshtastic_firmware:0.6.3
Meshtastic » Meshtastic Firmware » Version: 0.6.4

cpe:2.3:o:meshtastic:meshtastic_firmware:0.6.4
Meshtastic » Meshtastic Firmware » Version: 0.6.7

cpe:2.3:o:meshtastic:meshtastic_firmware:0.6.7
Meshtastic » Meshtastic Firmware » Version: 0.6.8

cpe:2.3:o:meshtastic:meshtastic_firmware:0.6.8
Meshtastic » Meshtastic Firmware » Version: 0.7.10

cpe:2.3:o:meshtastic:meshtastic_firmware:0.7.10
Meshtastic » Meshtastic Firmware » Version: 0.7.11

cpe:2.3:o:meshtastic:meshtastic_firmware:0.7.11
Meshtastic » Meshtastic Firmware » Version: 0.7.4

cpe:2.3:o:meshtastic:meshtastic_firmware:0.7.4
Meshtastic » Meshtastic Firmware » Version: 0.7.5

cpe:2.3:o:meshtastic:meshtastic_firmware:0.7.5
Meshtastic » Meshtastic Firmware » Version: 0.7.6

cpe:2.3:o:meshtastic:meshtastic_firmware:0.7.6
Meshtastic » Meshtastic Firmware » Version: 0.7.7

cpe:2.3:o:meshtastic:meshtastic_firmware:0.7.7
Meshtastic » Meshtastic Firmware » Version: 0.7.8

cpe:2.3:o:meshtastic:meshtastic_firmware:0.7.8
Meshtastic » Meshtastic Firmware » Version: 0.7.9

cpe:2.3:o:meshtastic:meshtastic_firmware:0.7.9
Meshtastic » Meshtastic Firmware » Version: 0.8.1

cpe:2.3:o:meshtastic:meshtastic_firmware:0.8.1
Meshtastic » Meshtastic Firmware » Version: 0.8.2

cpe:2.3:o:meshtastic:meshtastic_firmware:0.8.2
Meshtastic » Meshtastic Firmware » Version: 0.9.1

cpe:2.3:o:meshtastic:meshtastic_firmware:0.9.1
Meshtastic » Meshtastic Firmware » Version: 0.9.2

cpe:2.3:o:meshtastic:meshtastic_firmware:0.9.2
Meshtastic » Meshtastic Firmware » Version: 0.9.3

cpe:2.3:o:meshtastic:meshtastic_firmware:0.9.3
Meshtastic » Meshtastic Firmware » Version: 0.9.5

cpe:2.3:o:meshtastic:meshtastic_firmware:0.9.5
Meshtastic » Meshtastic Firmware » Version: 0.9.6

cpe:2.3:o:meshtastic:meshtastic_firmware:0.9.6
Meshtastic » Meshtastic Firmware » Version: 0.9.7

cpe:2.3:o:meshtastic:meshtastic_firmware:0.9.7
Meshtastic » Meshtastic Firmware » Version: 1.0.0

cpe:2.3:o:meshtastic:meshtastic_firmware:1.0.0
Meshtastic » Meshtastic Firmware » Version: 1.1.0

cpe:2.3:o:meshtastic:meshtastic_firmware:1.1.0
Meshtastic » Meshtastic Firmware » Version: 1.1.1

cpe:2.3:o:meshtastic:meshtastic_firmware:1.1.1
Meshtastic » Meshtastic Firmware » Version: 1.1.2

cpe:2.3:o:meshtastic:meshtastic_firmware:1.1.2
Meshtastic » Meshtastic Firmware » Version: 1.1.20

cpe:2.3:o:meshtastic:meshtastic_firmware:1.1.20
Meshtastic » Meshtastic Firmware » Version: 1.1.23

cpe:2.3:o:meshtastic:meshtastic_firmware:1.1.23
Meshtastic » Meshtastic Firmware » Version: 1.1.3

cpe:2.3:o:meshtastic:meshtastic_firmware:1.1.3
Meshtastic » Meshtastic Firmware » Version: 1.1.30

cpe:2.3:o:meshtastic:meshtastic_firmware:1.1.30
Meshtastic » Meshtastic Firmware » Version: 1.1.31

cpe:2.3:o:meshtastic:meshtastic_firmware:1.1.31
Meshtastic » Meshtastic Firmware » Version: 1.1.32

cpe:2.3:o:meshtastic:meshtastic_firmware:1.1.32
Meshtastic » Meshtastic Firmware » Version: 1.1.33

cpe:2.3:o:meshtastic:meshtastic_firmware:1.1.33
Meshtastic » Meshtastic Firmware » Version: 1.1.4

cpe:2.3:o:meshtastic:meshtastic_firmware:1.1.4
Meshtastic » Meshtastic Firmware » Version: 1.1.42

cpe:2.3:o:meshtastic:meshtastic_firmware:1.1.42
Meshtastic » Meshtastic Firmware » Version: 1.1.46

cpe:2.3:o:meshtastic:meshtastic_firmware:1.1.46
Meshtastic » Meshtastic Firmware » Version: 1.1.47

cpe:2.3:o:meshtastic:meshtastic_firmware:1.1.47
Meshtastic » Meshtastic Firmware » Version: 1.1.48

cpe:2.3:o:meshtastic:meshtastic_firmware:1.1.48
Meshtastic » Meshtastic Firmware » Version: 1.1.5

cpe:2.3:o:meshtastic:meshtastic_firmware:1.1.5
Meshtastic » Meshtastic Firmware » Version: 1.1.50

cpe:2.3:o:meshtastic:meshtastic_firmware:1.1.50
Meshtastic » Meshtastic Firmware » Version: 1.1.6

cpe:2.3:o:meshtastic:meshtastic_firmware:1.1.6
Meshtastic » Meshtastic Firmware » Version: 1.1.7

cpe:2.3:o:meshtastic:meshtastic_firmware:1.1.7
Meshtastic » Meshtastic Firmware » Version: 1.1.8

cpe:2.3:o:meshtastic:meshtastic_firmware:1.1.8
Meshtastic » Meshtastic Firmware » Version: 1.2.1

cpe:2.3:o:meshtastic:meshtastic_firmware:1.2.1
Meshtastic » Meshtastic Firmware » Version: 1.2.10

cpe:2.3:o:meshtastic:meshtastic_firmware:1.2.10
Meshtastic » Meshtastic Firmware » Version: 1.2.11

cpe:2.3:o:meshtastic:meshtastic_firmware:1.2.11
Meshtastic » Meshtastic Firmware » Version: 1.2.13

cpe:2.3:o:meshtastic:meshtastic_firmware:1.2.13
Meshtastic » Meshtastic Firmware » Version: 1.2.16

cpe:2.3:o:meshtastic:meshtastic_firmware:1.2.16
Meshtastic » Meshtastic Firmware » Version: 1.2.17

cpe:2.3:o:meshtastic:meshtastic_firmware:1.2.17
Meshtastic » Meshtastic Firmware » Version: 1.2.20

cpe:2.3:o:meshtastic:meshtastic_firmware:1.2.20
Meshtastic » Meshtastic Firmware » Version: 1.2.23

cpe:2.3:o:meshtastic:meshtastic_firmware:1.2.23
Meshtastic » Meshtastic Firmware » Version: 1.2.25

cpe:2.3:o:meshtastic:meshtastic_firmware:1.2.25
Meshtastic » Meshtastic Firmware » Version: 1.2.28

cpe:2.3:o:meshtastic:meshtastic_firmware:1.2.28
Meshtastic » Meshtastic Firmware » Version: 1.2.4

cpe:2.3:o:meshtastic:meshtastic_firmware:1.2.4
Meshtastic » Meshtastic Firmware » Version: 1.2.5

cpe:2.3:o:meshtastic:meshtastic_firmware:1.2.5
Meshtastic » Meshtastic Firmware » Version: 1.2.6

cpe:2.3:o:meshtastic:meshtastic_firmware:1.2.6
Meshtastic » Meshtastic Firmware » Version: 1.2.9

cpe:2.3:o:meshtastic:meshtastic_firmware:1.2.9
Meshtastic » Meshtastic Firmware » Version: 2.4.1

cpe:2.3:o:meshtastic:meshtastic_firmware:2.4.1
Meshtastic » Meshtastic Firmware » Version: 2.5.0

cpe:2.3:o:meshtastic:meshtastic_firmware:2.5.0
Meshtastic » Meshtastic Firmware » Version: 2.5.1

cpe:2.3:o:meshtastic:meshtastic_firmware:2.5.1
Meshtastic » Meshtastic Firmware » Version: 2.5.19

cpe:2.3:o:meshtastic:meshtastic_firmware:2.5.19
Meshtastic » Meshtastic Firmware » Version: 2.5.6

cpe:2.3:o:meshtastic:meshtastic_firmware:2.5.6
Meshtastic » Meshtastic Firmware » Version: 2.6.2

cpe:2.3:o:meshtastic:meshtastic_firmware:2.6.2

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2025-55293

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