CVE-2026-3678

Tenda FH451 AdvSetWan sub_3C434 stack-based overflow

Published: Mar 7, 2026Updated: Mar 9, 2026 Sources: CVE List NVD BDUCWE-119

8.8HIGH

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:LPrivileges Required

Low

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:HIntegrity

High

A:HAvailability

High

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Weaknesses

CWE-119 CWE-121

Affected Products

Tenda

commercial·CN

FH451

Networking Infrastructure

fh451 firmware

Networking Infrastructure

Shenzhen Tenda Technology Co., Ltd.

commercial·CNaka tenda

Tenda FH451On-premNetwork Device

Networking Infrastructure / router-switch

Exploitability

Official Patch Available

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Initial Access

Privilege Escalation

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References

https://github.com/Litengzheng/vul_db/commits/main/FH451/vul_62/README.md

github.com

https://vuldb.com/?ctiid.349580

vuldb.com

https://vuldb.com/?id.349580

vuldb.com

and 6 more references View all →

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