Description
A security flaw has been discovered in Tenda AC21 up to 16.03.08.16. Affected by this vulnerability is the function sscanf of the file /goform/SetStaticRouteCfg. The manipulation of the argument list results in buffer overflow. The attack can be launched remotely. The exploit has been released to the public and may be exploited.
References (5)
Core 5
Core References
Third Party Advisory, VDB Entry vdb-entry
technical-description
https://vuldb.com/?id.326173
Permissions Required, VDB Entry signature
permissions-required
https://vuldb.com/?ctiid.326173
Third Party Advisory, VDB Entry third-party-advisory
https://vuldb.com/?submit.661806
Exploit, Issue Tracking exploit
issue-tracking
https://github.com/maximdevere/CVE2/issues/2
Product product
https://www.tenda.com.cn/
Scores
CVSS v3
8.8
EPSS
0.0027
EPSS Percentile
50.4%
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-120
Status
published
Products (1)
tenda/ac21_firmware
< 16.03.08.16
Published
Sep 28, 2025
Tracked Since
Feb 18, 2026