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ID

VAR-202603-1217


CVE

CVE-2026-3677


TITLE

Shenzhen Tenda Technology Co.,Ltd. of fh451  Multiple vulnerabilities in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2026-006562

DESCRIPTION

A vulnerability was found in Tenda FH451 1.0.0.9. This impacts the function fromSetCfm of the file /goform/setcfm. The manipulation of the argument funcname/funcpara1 results in stack-based buffer overflow. The attack may be performed from remote. The exploit has been made public and could be used. An exploit for this vulnerability has been publicly released and is being exploited in the wild.All information handled by the software may be leaked to the outside. All information handled by the software may be rewritten. Furthermore, the software may stop working completely. Furthermore, attacks that exploit this vulnerability will not affect other software

Trust: 1.62

sources: NVD: CVE-2026-3677 // JVNDB: JVNDB-2026-006562

AFFECTED PRODUCTS

vendor:tendamodel:fh451scope:eqversion:1.0.0.9

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vendor:tendamodel:fh451scope: - version: -

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vendor:tendamodel:fh451scope:eqversion: -

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vendor:tendamodel:fh451scope:eqversion:fh451 firmware 1.0.0.9

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sources: JVNDB: JVNDB-2026-006562 // NVD: CVE-2026-3677

CVSS

SEVERITY

CVSSV2

CVSSV3

cna@vuldb.com: CVE-2026-3677
value: HIGH

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OTHER: JVNDB-2026-006562
value: HIGH

Trust: 0.8

cna@vuldb.com: CVE-2026-3677
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

OTHER: JVNDB-2026-006562
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: NONE
impactScore: NONE
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.8

cna@vuldb.com: CVE-2026-3677
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

OTHER: JVNDB-2026-006562
baseSeverity: HIGH
baseScore: 8.8
vectorString: CVSS:3.0/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: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: JVNDB: JVNDB-2026-006562 // NVD: CVE-2026-3677

PROBLEMTYPE DATA

problemtype:CWE-119

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problemtype:CWE-121

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problemtype:Buffer error (CWE-119) [ others ]

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problemtype: Stack-based buffer overflow (CWE-121) [ others ]

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sources: JVNDB: JVNDB-2026-006562 // NVD: CVE-2026-3677

PATCH

title:Submit #765329url:https://github.com/Litengzheng/vul_db/blob/main/FH451/vul_61/README.md

Trust: 0.8

sources: JVNDB: JVNDB-2026-006562

EXTERNAL IDS

db:NVDid:CVE-2026-3677

Trust: 2.6

db:VULDBid:349579

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db:JVNDBid:JVNDB-2026-006562

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sources: JVNDB: JVNDB-2026-006562 // NVD: CVE-2026-3677

REFERENCES

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

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url:https://vuldb.com/?id.349579

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url:https://github.com/litengzheng/vul_db/blob/main/fh451/vul_61/readme.md

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url:https://vuldb.com/?ctiid.349579

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url:https://vuldb.com/?submit.765329

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url:https://nvd.nist.gov/vuln/detail/cve-2026-3677

Trust: 0.8

sources: JVNDB: JVNDB-2026-006562 // NVD: CVE-2026-3677

SOURCES

db:JVNDBid:JVNDB-2026-006562
db:NVDid:CVE-2026-3677

LAST UPDATE DATE

2026-03-12T23:21:20.444000+00:00


SOURCES UPDATE DATE

db:JVNDBid:JVNDB-2026-006562date:2026-03-11T07:00:00
db:NVDid:CVE-2026-3677date:2026-03-09T16:16:11.300

SOURCES RELEASE DATE

db:JVNDBid:JVNDB-2026-006562date:2026-03-11T00:00:00
db:NVDid:CVE-2026-3677date:2026-03-07T22:15:50.770