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ID

VAR-202603-1017


CVE

CVE-2026-3678


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.

Trust: 1.0

sources: NVD: CVE-2026-3678

AFFECTED PRODUCTS

vendor:tendamodel:fh451scope:eqversion:1.0.0.9

Trust: 1.0

sources: NVD: CVE-2026-3678

CVSS

SEVERITY

CVSSV2

CVSSV3

cna@vuldb.com: CVE-2026-3678
value: HIGH

Trust: 1.0

cna@vuldb.com: CVE-2026-3678
severity: HIGH
baseScore: 9.0
vectorString: AV:N/AC:L/AU:S/C:C/I:C/A:C
accessVector: NETWORK
accessComplexity: LOW
authentication: SINGLE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 8.0
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.0

cna@vuldb.com: CVE-2026-3678
baseSeverity: HIGH
baseScore: 8.8
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 2.8
impactScore: 5.9
version: 3.1

Trust: 1.0

sources: NVD: CVE-2026-3678

PROBLEMTYPE DATA

problemtype:CWE-119

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problemtype:CWE-121

Trust: 1.0

sources: NVD: CVE-2026-3678

EXTERNAL IDS

db:VULDBid:349580

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db:NVDid:CVE-2026-3678

Trust: 1.0

sources: NVD: CVE-2026-3678

REFERENCES

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

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url:https://www.tenda.com.cn/

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url:https://vuldb.com/?submit.765330

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

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url:https://github.com/litengzheng/vul_db/blob/main/fh451/vul_62/readme.md

Trust: 1.0

sources: NVD: CVE-2026-3678

SOURCES

db:NVDid:CVE-2026-3678

LAST UPDATE DATE

2026-03-09T23:54:57.504000+00:00


SOURCES UPDATE DATE

db:NVDid:CVE-2026-3678date:2026-03-09T16:16:21.987

SOURCES RELEASE DATE

db:NVDid:CVE-2026-3678date:2026-03-07T23:15:46.520