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ID

VAR-202603-5004


CVE

CVE-2026-4904


TITLE

Shenzhen Tenda Technology Co.,Ltd. of AC5  Multiple vulnerabilities in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2026-009572

DESCRIPTION

A vulnerability has been found in Tenda AC5 15.03.06.47. This issue affects the function formSetCfm of the file /goform/setcfm of the component POST Request Handler. Such manipulation of the argument funcpara1 leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The exploit is publicly available and could be misused.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-2026-4904 // JVNDB: JVNDB-2026-009572

AFFECTED PRODUCTS

vendor:tendamodel:ac5scope:eqversion:15.03.06.47

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vendor:tendamodel:ac5scope:eqversion: -

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vendor:tendamodel:ac5scope:eqversion:ac5 firmware 15.03.06.47

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vendor:tendamodel:ac5scope: - version: -

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sources: JVNDB: JVNDB-2026-009572 // NVD: CVE-2026-4904

CVSS

SEVERITY

CVSSV2

CVSSV3

cna@vuldb.com: CVE-2026-4904
value: HIGH

Trust: 1.0

OTHER: JVNDB-2026-009572
value: HIGH

Trust: 0.8

cna@vuldb.com: CVE-2026-4904
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-2026-009572
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-2026-4904
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-2026-009572
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-2026-009572 // NVD: CVE-2026-4904

PROBLEMTYPE DATA

problemtype:CWE-787

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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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problemtype: Out-of-bounds writing (CWE-787) [NVD evaluation ]

Trust: 0.8

sources: JVNDB: JVNDB-2026-009572 // NVD: CVE-2026-4904

PATCH

title://vuldb.com/?submit.777381url:https://lavender-bicycle-a5a.notion.site/Tenda_AC5_setcfm_funcpara1-32053a41781f8073a4d6ef8076abe644?source=copy_link

Trust: 0.8

sources: JVNDB: JVNDB-2026-009572

EXTERNAL IDS

db:NVDid:CVE-2026-4904

Trust: 2.6

db:VULDBid:353655

Trust: 1.0

db:JVNDBid:JVNDB-2026-009572

Trust: 0.8

sources: JVNDB: JVNDB-2026-009572 // NVD: CVE-2026-4904

REFERENCES

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

Trust: 1.8

url:https://vuldb.com/?id.353655

Trust: 1.0

url:https://vuldb.com/?ctiid.353655

Trust: 1.0

url:https://vuldb.com/?submit.777381

Trust: 1.0

url:https://lavender-bicycle-a5a.notion.site/tenda_ac5_setcfm_funcpara1-32053a41781f8073a4d6ef8076abe644?source=copy_link

Trust: 1.0

url:https://nvd.nist.gov/vuln/detail/cve-2026-4904

Trust: 0.8

sources: JVNDB: JVNDB-2026-009572 // NVD: CVE-2026-4904

SOURCES

db:JVNDBid:JVNDB-2026-009572
db:NVDid:CVE-2026-4904

LAST UPDATE DATE

2026-04-03T23:53:38.462000+00:00


SOURCES UPDATE DATE

db:JVNDBid:JVNDB-2026-009572date:2026-04-02T01:37:00
db:NVDid:CVE-2026-4904date:2026-03-31T20:59:41.853

SOURCES RELEASE DATE

db:JVNDBid:JVNDB-2026-009572date:2026-04-02T00:00:00
db:NVDid:CVE-2026-4904date:2026-03-27T00:16:24.170