CVE-2025-8170

A vulnerability classified as critical was found in TOTOLINK T6 4.1.5cu.748_B20211015. This vulnerability affects the function tcpcheck_net of the file /router/meshSlaveDlfw of the component MQTT Packet Handler. The manipulation of the argument serverIp leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

CVSS v3 8.8 HIGH
CVSS v2.0 9.0 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

9.0^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:S/C:C/I:C/A:C

Exploitability : 8.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/9.md	Exploit Third Party Advisory
https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/9.md#poc	Exploit Third Party Advisory
https://vuldb.com/?ctiid.317584	Permissions Required
https://vuldb.com/?id.317584	Third Party Advisory VDB Entry
https://vuldb.com/?submit.620834	Third Party Advisory VDB Entry
https://www.totolink.net/	Product

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:totolink:t6_firmware:v4.1.5cu.748_b20211015:*:*:*:*:*:*:*

cpe:2.3:h:totolink:t6:3:*:*:*:*:*:*:*

History

No history.

Information

Published : 2025-07-25 21:15

Updated : 2025-08-07 14:34

NVD link : CVE-2025-8170

Mitre link : CVE-2025-8170

CVE.ORG link : CVE-2025-8170

JSON object : View

Products Affected

totolink

t6
t6_firmware

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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This vulnerability affects the function tcpcheck_net of the file /router/meshSlaveDlfw of the component MQTT Packet Handler. The manipulation of the argument serverIp leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used."}, {"lang": "es", "value": "Se encontr\u00f3 una vulnerabilidad clasificada como cr\u00edtica en TOTOLINK T6 4.1.5cu.748_B20211015. Esta vulnerabilidad afecta la funci\u00f3n tcpcheck_net del archivo /router/meshSlaveDlfw del componente MQTT Packet Handler. La manipulaci\u00f3n del argumento serverIp provoca un desbordamiento del b\u00fafer. El ataque puede ejecutarse en remoto. Se ha hecho p\u00fablico el exploit y puede que sea utilizado."}], "lastModified": "2025-08-07T14:34:13.450", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:totolink:t6_firmware:v4.1.5cu.748_b20211015:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "43CE0237-A087-41D7-9E63-ED62660C11BE"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:totolink:t6:3:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "61907F0F-5DE6-4E57-A938-263A6B6E53CE"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "[email protected]"}