CVE-2026-2139

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-2139
A vulnerability was determined in Tenda TX9 up to 22.03.02.10_multi. Affected by this vulnerability is the function sub_432580 of the file /goform/fast_setting_wifi_set. This manipulation of the argument ssid causes buffer overflow. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized.

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/MRAdera/IoT-Vuls/blob/main/tenda/tx9%20pro/fast_setting_wifi_set.md Exploit Third Party Advisory
https://github.com/MRAdera/IoT-Vuls/blob/main/tenda/tx9%20pro/fast_setting_wifi_set.md#poc Exploit
https://vuldb.com/?ctiid.344774 Permissions Required VDB Entry
https://vuldb.com/?id.344774 Third Party Advisory VDB Entry
https://vuldb.com/?submit.747250 Third Party Advisory VDB Entry
https://www.tenda.com.cn/ Product
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:tenda:tx9_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:tenda:tx9:-:*:*:*:*:*:*:*
History

17 Jun 2026, 10:30

Type Values Removed Values Added
Summary
  • (es) Se determinó una vulnerabilidad en Tenda TX9 hasta la versión 22.03.02.10_multi. Afectada por esta vulnerabilidad es la función sub_432580 del archivo /goform/fast_setting_wifi_set. Esta manipulación del argumento ssid causa desbordamiento de búfer. El ataque puede iniciarse de forma remota. El exploit ha sido divulgado públicamente y puede ser utilizado.

10 Feb 2026, 19:29

Type Values Removed Values Added
CPE cpe:2.3:h:tenda:tx9:-:*:*:*:*:*:*:*
cpe:2.3:o:tenda:tx9_firmware:*:*:*:*:*:*:*:*
First Time Tenda
Tenda tx9 Firmware
Tenda tx9
References () https://github.com/MRAdera/IoT-Vuls/blob/main/tenda/tx9%20pro/fast_setting_wifi_set.md - () https://github.com/MRAdera/IoT-Vuls/blob/main/tenda/tx9%20pro/fast_setting_wifi_set.md - Exploit, Third Party Advisory
References () https://github.com/MRAdera/IoT-Vuls/blob/main/tenda/tx9%20pro/fast_setting_wifi_set.md#poc - () https://github.com/MRAdera/IoT-Vuls/blob/main/tenda/tx9%20pro/fast_setting_wifi_set.md#poc - Exploit
References () https://vuldb.com/?ctiid.344774 - () https://vuldb.com/?ctiid.344774 - Permissions Required, VDB Entry
References () https://vuldb.com/?id.344774 - () https://vuldb.com/?id.344774 - Third Party Advisory, VDB Entry
References () https://vuldb.com/?submit.747250 - () https://vuldb.com/?submit.747250 - Third Party Advisory, VDB Entry
References () https://www.tenda.com.cn/ - () https://www.tenda.com.cn/ - Product

08 Feb 2026, 07:15

Type Values Removed Values Added
New CVE
Information

Published : 2026-02-08 07:15

Updated : 2026-06-17 10:30

NVD link : CVE-2026-2139

Mitre link : CVE-2026-2139

CVE.ORG link : CVE-2026-2139

JSON object : View

Products Affected

tenda

  • tx9
  • tx9_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')