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Vulnerabilities

CVE-2026-4565 | BDVDB-2026-321966 Detail

TendaAC21

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.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.

Weaknesses#

  • CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References#

Exploit#

History#

  1. Version 1Record published in the CVE List.