CVE-2026-3678

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-3678
A vulnerability was determined in Tenda FH451 1.0.0.9. Affected is the function sub_3C434 of the file /goform/AdvSetWan. This manipulation of the argument wanmode/PPPOEPassword causes stack-based buffer overflow. It is possible to initiate the attack 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/Litengzheng/vul_db/blob/main/FH451/vul_62/README.md Exploit Issue Tracking
https://vuldb.com/?ctiid.349580 Permissions Required VDB Entry
https://vuldb.com/?id.349580 Third Party Advisory VDB Entry
https://vuldb.com/?submit.765330 Third Party Advisory VDB Entry
https://www.tenda.com.cn/ Product
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:tenda:fh451_firmware:1.0.0.9:*:*:*:*:*:*:*
cpe:2.3:h:tenda:fh451:-:*:*:*:*:*:*:*
History

09 Mar 2026, 16:16

Type Values Removed Values Added
CPE cpe:2.3:h:tenda:fh451:-:*:*:*:*:*:*:*
cpe:2.3:o:tenda:fh451_firmware:1.0.0.9:*:*:*:*:*:*:*
First Time Tenda
Tenda fh451 Firmware
Tenda fh451
Summary
  • (es) Una vulnerabilidad se determinó en Tenda FH451 1.0.0.9. Afecta a la función sub_3C434 del archivo /goform/AdvSetWan. Esta manipulación del argumento wanmode/PPPOEPassword causa desbordamiento de búfer basado en pila. Es posible iniciar el ataque de forma remota. El exploit ha sido divulgado públicamente y puede ser utilizado.
References () https://github.com/Litengzheng/vul_db/blob/main/FH451/vul_62/README.md - () https://github.com/Litengzheng/vul_db/blob/main/FH451/vul_62/README.md - Exploit, Issue Tracking
References () https://vuldb.com/?ctiid.349580 - () https://vuldb.com/?ctiid.349580 - Permissions Required, VDB Entry
References () https://vuldb.com/?id.349580 - () https://vuldb.com/?id.349580 - Third Party Advisory, VDB Entry
References () https://vuldb.com/?submit.765330 - () https://vuldb.com/?submit.765330 - Third Party Advisory, VDB Entry
References () https://www.tenda.com.cn/ - () https://www.tenda.com.cn/ - Product

07 Mar 2026, 23:15

Type Values Removed Values Added
New CVE
Information

Published : 2026-03-07 23:15

Updated : 2026-03-09 16:16

NVD link : CVE-2026-3678

Mitre link : CVE-2026-3678

CVE.ORG link : CVE-2026-3678

JSON object : View

Products Affected

tenda

  • fh451
  • fh451_firmware
CWE
CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-121

Stack-based Buffer Overflow