Description
A vulnerability has been found in Tenda AC21 16.03.08.16. This vulnerability affects unknown code of the file /goform/SetSysTimeCfg. The manipulation of the argument timeZone/time leads to stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used.
References (7)
Core 7
Core References
Third Party Advisory, VDB Entry vdb-entry
technical-description
https://vuldb.com/?id.333018
Permissions Required, VDB Entry signature
permissions-required
https://vuldb.com/?ctiid.333018
Third Party Advisory, VDB Entry third-party-advisory
https://vuldb.com/?submit.694425
Third Party Advisory, VDB Entry third-party-advisory
https://vuldb.com/?submit.694430
Exploit, Third Party Advisory related
https://github.com/Madgeaaaaa/MY_VULN_2/blob/main/Tenda/VULN8.md
Exploit, Third Party Advisory exploit
https://github.com/Madgeaaaaa/MY_VULN_2/blob/main/Tenda/VULN9.md
Product product
https://www.tenda.com.cn/
Scores
CVSS v3
8.8
EPSS
0.0044
EPSS Percentile
63.4%
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-119
CWE-121
Status
published
Products (1)
tenda/ac21_firmware
16.03.08.16
Published
Nov 20, 2025
Tracked Since
Feb 18, 2026