// For flags

CVE-2021-40546

 

Severity Score

4.9
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track*
*SSVC
Descriptions

Tenda AC6 US_AC6V4.0RTL_V02.03.01.26_cn.bin allows attackers (who have the administrator password) to cause a denial of service (device crash) via a long string in the wifiPwd_5G parameter to /goform/setWifi.

Tenda AC6 US_AC6V4.0RTL_V02.03.01.26_cn.bin permite a atacantes (que tienen la contraseña de administrador) provocar una denegación de servicio (caída del dispositivo) a través de una cadena larga en el parámetro wifiPwd_5G en /goform/setWifi.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
Multiple
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Track*
Exploitation
Poc
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2021-09-07 CVE Reserved
  • 2023-09-05 CVE Published
  • 2024-10-01 CVE Updated
  • 2024-10-01 First Exploit
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-404: Improper Resource Shutdown or Release
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Tenda
Search vendor "Tenda"
 Ac6 Firmware
Search vendor "Tenda" for product "Ac6 Firmware"
 02.03.01.26
Search vendor "Tenda" for product "Ac6 Firmware" and version "02.03.01.26"
-
Affected
in Tenda
Search vendor "Tenda"
 Ac6
Search vendor "Tenda" for product "Ac6"
 4.0
Search vendor "Tenda" for product "Ac6" and version "4.0"
-
Safe