CVE-2026-2909

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-2909
A vulnerability was detected in Tenda HG9 300001138. This affects an unknown part of the file /boaform/formPing of the component Diagnostic Ping Endpoint. Performing a manipulation of the argument pingAddr results in stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit is now 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/QIU-DIE/cve-nneeww/issues/11 Exploit Issue Tracking Mitigation Third Party Advisory
https://vuldb.com/?ctiid.347218 Permissions Required VDB Entry
https://vuldb.com/?id.347218 Third Party Advisory VDB Entry
https://vuldb.com/?submit.755211 Third Party Advisory VDB Entry
https://www.tenda.com.cn/ Product
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:tenda:hg9_firmware:300001138:*:*:*:*:*:*:*
cpe:2.3:h:tenda:hg9:-:*:*:*:*:*:*:*
History

17 Jun 2026, 10:32

Type Values Removed Values Added
Summary
  • (es) Se detectó una vulnerabilidad en Tenda HG9 300001138. La cual afecta a una parte desconocida del archivo /boaform/formPing del componente Diagnostic Ping Endpoint. Si se manipula el argumento pingAddr se puede provocar un desbordamiento de búfer basado en pila. Es posible lanzar el ataque en remoto. El exploit es ahora público y puede ser usado.

23 Feb 2026, 20:21

Type Values Removed Values Added
First Time Tenda
Tenda hg9 Firmware
Tenda hg9
CPE cpe:2.3:h:tenda:hg9:-:*:*:*:*:*:*:*
cpe:2.3:o:tenda:hg9_firmware:300001138:*:*:*:*:*:*:*
References () https://github.com/QIU-DIE/cve-nneeww/issues/11 - () https://github.com/QIU-DIE/cve-nneeww/issues/11 - Exploit, Issue Tracking, Mitigation, Third Party Advisory
References () https://vuldb.com/?ctiid.347218 - () https://vuldb.com/?ctiid.347218 - Permissions Required, VDB Entry
References () https://vuldb.com/?id.347218 - () https://vuldb.com/?id.347218 - Third Party Advisory, VDB Entry
References () https://vuldb.com/?submit.755211 - () https://vuldb.com/?submit.755211 - Third Party Advisory, VDB Entry
References () https://www.tenda.com.cn/ - () https://www.tenda.com.cn/ - Product

22 Feb 2026, 02:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-02-22 02:16

Updated : 2026-06-17 10:32

NVD link : CVE-2026-2909

Mitre link : CVE-2026-2909

CVE.ORG link : CVE-2026-2909

JSON object : View

Products Affected

tenda

  • hg9_firmware
  • hg9
CWE
CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-121

Stack-based Buffer Overflow