CVE-2026-2148 MEDIUM

CVE-2026-2148: Tenda AC21 Web Management DownloadFlash information disclosure

Vendor Tenda
Product AC21
Weakness CWE-200 · Info exposure
Published February 8, 2026
Last update February 23, 2026
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CVSS base score

6.9/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A security vulnerability has been detected in Tenda AC21 16.03.08.16. Affected is an unknown function of the file /cgi-bin/DownloadFlash of the component Web Management Interface. The manipulation leads to information disclosure. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used.

Key dates

02Disclosure timeline

February 8, 2026 CVE published
February 23, 2026 Record updated