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NVD Vulnerability Details :
CVE-2026-4565
Analyzed
More InfoOfficial Page
Source-cna@vuldb.com
View Known Exploited Vulnerability (KEV) details
Published At-23 Mar, 2026 | 01:16
Updated At-03 Apr, 2026 | 11:31

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.07.4HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary3.18.8HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Secondary2.09.0HIGH
AV:N/AC:L/Au:S/C:C/I:C/A:C
Type: Secondary
Version: 4.0
Base score: 7.4
Base severity: HIGH
Vector:
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Type: Primary
Version: 3.1
Base score: 8.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Type: Secondary
Version: 2.0
Base score: 9.0
Base severity: HIGH
Vector:
AV:N/AC:L/Au:S/C:C/I:C/A:C
CPE Matches
Tenda Technology Co., Ltd.
tenda
>>ac21_firmware>>16.03.08.16
cpe:2.3:o:tenda:ac21_firmware:16.03.08.16:*:*:*:*:*:*:*
Tenda Technology Co., Ltd.
tenda
>>ac21>>1.0
cpe:2.3:h:tenda:ac21:1.0:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-119Primarycna@vuldb.com
CWE-120Primarycna@vuldb.com
CWE ID: CWE-119
Type: Primary
Source: cna@vuldb.com
CWE ID: CWE-120
Type: Primary
Source: cna@vuldb.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://github.com/hellonestor/killallbug/issues/14cna@vuldb.com
Exploit
Issue Tracking
https://github.com/hellonestor/killallbug/releases/tag/poccna@vuldb.com
Exploit
https://vuldb.com/?ctiid.352402cna@vuldb.com
Permissions Required
VDB Entry
https://vuldb.com/?id.352402cna@vuldb.com
Third Party Advisory
VDB Entry
https://vuldb.com/?submit.775119cna@vuldb.com
Third Party Advisory
VDB Entry
https://www.tenda.com.cn/cna@vuldb.com
Product
Hyperlink: https://github.com/hellonestor/killallbug/issues/14
Source: cna@vuldb.com
Resource:
Exploit
Issue Tracking
Hyperlink: https://github.com/hellonestor/killallbug/releases/tag/poc
Source: cna@vuldb.com
Resource:
Exploit
Hyperlink: https://vuldb.com/?ctiid.352402
Source: cna@vuldb.com
Resource:
Permissions Required
VDB Entry
Hyperlink: https://vuldb.com/?id.352402
Source: cna@vuldb.com
Resource:
Third Party Advisory
VDB Entry
Hyperlink: https://vuldb.com/?submit.775119
Source: cna@vuldb.com
Resource:
Third Party Advisory
VDB Entry
Hyperlink: https://www.tenda.com.cn/
Source: cna@vuldb.com
Resource:
Product
Change History
0Changes found
Details not found