Vulnerability Database

322,129

Total vulnerabilities in the database

CVE-2026-1637

A vulnerability was identified in Tenda AC21 16.03.08.16. The affected element is the function fromAdvSetMacMtuWan of the file /goform/AdvSetMacMtuWan. The manipulation leads to stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit is publicly available and might be used.

  • Published: Jan 29, 2026
  • Updated: Jan 31, 2026
  • CVE: CVE-2026-1637
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 8.8
  • AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2:

  • Severity: High
  • Score: 9
  • AV:N/AC:L/Au:S/C:C/I:C/A:C

CWEs:

Software From Fixed in
tenda / ac21_firmware 16.03.08.16 16.03.08.16.x