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.

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Fixes

Solution

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Workaround

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History

Mon, 09 Mar 2026 16:30:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:h:tenda:fh451:-:*:*:*:*:*:*:*
cpe:2.3:o:tenda:fh451_firmware:1.0.0.9:*:*:*:*:*:*:*

Mon, 09 Mar 2026 10:15:00 +0000

Type Values Removed Values Added
First Time appeared Tenda fh451
Vendors & Products Tenda fh451

Sat, 07 Mar 2026 22:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Tenda FH451 AdvSetWan sub_3C434 stack-based overflow
First Time appeared Tenda
Tenda fh451 Firmware
Weaknesses CWE-119
CWE-121
CPEs cpe:2.3:o:tenda:fh451_firmware:*:*:*:*:*:*:*:*
Vendors & Products Tenda
Tenda fh451 Firmware
References
Metrics cvssV2_0

{'score': 9, 'vector': 'AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 8.8, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-03-07T22:32:09.041Z

Reserved: 2026-03-06T21:22:04.174Z

Link: CVE-2026-3678

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2026-03-07T23:15:46.520

Modified: 2026-03-09T16:16:21.987

Link: CVE-2026-3678

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-03-09T10:03:51Z

Weaknesses