Description
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.
References (5)
Core 5
Core References
Permissions Required, VDB Entry vdb-entry
technical-description
https://vuldb.com/?id.347180
Permissions Required, VDB Entry signature
permissions-required
https://vuldb.com/?ctiid.347180
Permissions Required, VDB Entry third-party-advisory
https://vuldb.com/?submit.754640
Issue Tracking exploit
issue-tracking
https://github.com/QIU-DIE/cve-nneeww/issues/6
Various Sources product
https://www.tenda.com.cn/
Scores
CVSS v3
8.8
EPSS
0.0011
EPSS Percentile
29.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
total
Details
CWE
CWE-121
CWE-119
Status
published
Products (1)
tenda/a21_firmware
1.0.0.0
Published
Feb 21, 2026
Tracked Since
Feb 22, 2026