CVE-2025-7912

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-7912
A vulnerability, which was classified as critical, has been found in TOTOLINK T6 4.1.5cu.748_B20211015. This issue affects the function recvSlaveUpgstatus of the component MQTT Service. The manipulation of the argument s leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

8.8 /10

CVSS v3 : HIGH

V3 Legend

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

V2 Legend

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/6.md Exploit Third Party Advisory
https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/6.md#poc Exploit Third Party Advisory
https://vuldb.com/?ctiid.317027 Permissions Required
https://vuldb.com/?id.317027 Third Party Advisory VDB Entry
https://vuldb.com/?submit.618655 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

23 Jul 2025, 16:07

Type Values Removed Values Added
First Time Totolink t6
Totolink
Totolink t6 Firmware
CPE cpe:2.3:h:totolink:t6:3:*:*:*:*:*:*:*
cpe:2.3:o:totolink:t6_firmware:v4.1.5cu.748_b20211015:*:*:*:*:*:*:*
References () https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/6.md - () https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/6.md - Exploit, Third Party Advisory
References () https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/6.md#poc - () https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/6.md#poc - Exploit, Third Party Advisory
References () https://vuldb.com/?ctiid.317027 - () https://vuldb.com/?ctiid.317027 - Permissions Required
References () https://vuldb.com/?id.317027 - () https://vuldb.com/?id.317027 - Third Party Advisory, VDB Entry
References () https://vuldb.com/?submit.618655 - () https://vuldb.com/?submit.618655 - Third Party Advisory, VDB Entry
References () https://www.totolink.net/ - () https://www.totolink.net/ - Product

22 Jul 2025, 13:06

Type Values Removed Values Added
Summary
  • (es) Se ha detectado una vulnerabilidad clasificada como crítica en TOTOLINK T6 4.1.5cu.748_B20211015. Este problema afecta a la función "recvSlaveUpgstatus" del componente "MQTT Service". La manipulación del argumento s provoca un desbordamiento del búfer. El ataque puede ejecutarse en remoto. Se ha hecho público el exploit y puede que sea utilizado.

20 Jul 2025, 23:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-07-20 23:15

Updated : 2025-07-23 16:07

NVD link : CVE-2025-7912

Mitre link : CVE-2025-7912

CVE.ORG link : CVE-2025-7912

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')