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A21

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CNA

CNA CVEs -

6

ADP CVEs -

0

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0

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Related CVEsRelated VendorsRelated AssignersReports
6Vulnerabilities found

CVE-2026-2886
Assigner-VulDB
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Assigner-VulDB
CVSS Score-8.7||HIGH
EPSS-Not Assigned
Published-21 Feb, 2026 | 21:02
Updated-21 Feb, 2026 | 21:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Tenda A21 SetOnlineDevName set_device_name stack-based overflow

A weakness has been identified in Tenda A21 1.0.0.0. This affects the function set_device_name of the file /goform/SetOnlineDevName. This manipulation of the argument devName causes stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks.

Action-Not Available
Vendor-Tenda Technology Co., Ltd.
Product-A21
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE ID-CWE-121
Stack-based Buffer Overflow
CVE-2026-2874
Assigner-VulDB
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Assigner-VulDB
CVSS Score-8.7||HIGH
EPSS-Not Assigned
Published-21 Feb, 2026 | 17:32
Updated-21 Feb, 2026 | 18:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Tenda A21 fast_setting_wifi_set form_fast_setting_wifi_set stack-based overflow

A flaw has been found in Tenda A21 1.0.0.0. Impacted is the function form_fast_setting_wifi_set of the file /goform/fast_setting_wifi_set. Executing a manipulation of the argument ssid can lead to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been published and may be used.

Action-Not Available
Vendor-Tenda Technology Co., Ltd.
Product-A21
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE ID-CWE-121
Stack-based Buffer Overflow
CVE-2026-2873
Assigner-VulDB
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Assigner-VulDB
CVSS Score-8.7||HIGH
EPSS-Not Assigned
Published-21 Feb, 2026 | 16:32
Updated-21 Feb, 2026 | 17:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Tenda A21 openSchedWifi setSchedWifi stack-based overflow

A vulnerability was detected in Tenda A21 1.0.0.0. This issue affects the function setSchedWifi of the file /goform/openSchedWifi. Performing a manipulation of the argument schedStartTime/schedEndTime results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit is now public and may be used.

Action-Not Available
Vendor-Tenda Technology Co., Ltd.
Product-A21
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE ID-CWE-121
Stack-based Buffer Overflow
CVE-2026-2872
Assigner-VulDB
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Assigner-VulDB
CVSS Score-8.7||HIGH
EPSS-Not Assigned
Published-21 Feb, 2026 | 16:02
Updated-21 Feb, 2026 | 16:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Tenda A21 MAC Filtering Configuration Endpoint setBlackRule set_device_name stack-based overflow

A security vulnerability has been detected in Tenda A21 1.0.0.0. This vulnerability affects the function set_device_name of the file /goform/setBlackRule of the component MAC Filtering Configuration Endpoint. Such manipulation of the argument devName/mac leads to stack-based buffer overflow. The attack may be performed from remote. The exploit has been disclosed publicly and may be used.

Action-Not Available
Vendor-Tenda Technology Co., Ltd.
Product-A21
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE ID-CWE-121
Stack-based Buffer Overflow
CVE-2026-2871
Assigner-VulDB
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Assigner-VulDB
CVSS Score-8.7||HIGH
EPSS-Not Assigned
Published-21 Feb, 2026 | 15:32
Updated-22 Feb, 2026 | 07:03
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Tenda A21 SetIpMacBind fromSetIpMacBind stack-based overflow

A weakness has been identified in Tenda A21 1.0.0.0. This affects the function fromSetIpMacBind of the file /goform/SetIpMacBind. This manipulation of the argument list causes stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks.

Action-Not Available
Vendor-Tenda Technology Co., Ltd.
Product-A21
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE ID-CWE-121
Stack-based Buffer Overflow
CVE-2026-2870
Assigner-VulDB
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Assigner-VulDB
CVSS Score-8.7||HIGH
EPSS-Not Assigned
Published-21 Feb, 2026 | 14:32
Updated-21 Feb, 2026 | 15:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Tenda A21 formSetQosBand set_qosMib_list stack-based overflow

A security flaw has been discovered in Tenda A21 1.0.0.0. Affected by this issue is the function set_qosMib_list of the file /goform/formSetQosBand. The manipulation of the argument list results in stack-based buffer overflow. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks.

Action-Not Available
Vendor-Tenda Technology Co., Ltd.
Product-A21
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE ID-CWE-121
Stack-based Buffer Overflow