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Findings

CVE-2026-4565

A vulnerability was detected in Tenda AC21 16.03.08.16.

Published Mar 23, 2026 · updated Jun 17, 2026 · tenda ac21 firmware

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.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 23, 2026 · NIST NVD

    Detected

    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.

  2. Jun 17, 2026 · NIST NVD

    Updated

    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.

Affected

  • cpe tenda/ac21 firmware16.03.08.16

Sources

  • CVE.orgVulnerability recordCVE-2026-4565

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-4565

    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 ma

    nvd.nist.gov

References