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ID

VAR-202603-2355


CVE

CVE-2026-4565


DESCRIPTION

A vulnerability was detected in Tenda AC21 16.03.08.16. Impacted is the function formSetQosBand of the file /goform/SetNetControlList. Performing a manipulation of the argument list results in buffer overflow. The attack can be initiated remotely. The exploit is now public and may be used.

Trust: 1.0

sources: NVD: CVE-2026-4565

AFFECTED PRODUCTS

vendor:tendamodel:ac21scope:eqversion:16.03.08.16

Trust: 1.0

sources: NVD: CVE-2026-4565

CVSS

SEVERITY

CVSSV2

CVSSV3

cna@vuldb.com: CVE-2026-4565
value: HIGH

Trust: 1.0

cna@vuldb.com: CVE-2026-4565
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-2026-4565
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-2026-4565

PROBLEMTYPE DATA

problemtype:CWE-119

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problemtype:CWE-120

Trust: 1.0

sources: NVD: CVE-2026-4565

EXTERNAL IDS

db:VULDBid:352402

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db:NVDid:CVE-2026-4565

Trust: 1.0

sources: NVD: CVE-2026-4565

REFERENCES

url:https://vuldb.com/?ctiid.352402

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url:https://vuldb.com/?id.352402

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

Trust: 1.0

url:https://github.com/hellonestor/killallbug/releases/tag/poc

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url:https://github.com/hellonestor/killallbug/issues/14

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url:https://vuldb.com/?submit.775119

Trust: 1.0

sources: NVD: CVE-2026-4565

SOURCES

db:NVDid:CVE-2026-4565

LAST UPDATE DATE

2026-04-03T23:50:20.999000+00:00


SOURCES UPDATE DATE

db:NVDid:CVE-2026-4565date:2026-04-03T11:31:50.243

SOURCES RELEASE DATE

db:NVDid:CVE-2026-4565date:2026-03-23T01:16:43.803