Description
A vulnerability was found in Tenda AC20 16.03.08.12. This vulnerability affects the function save_virtualser_data of the file /goform/formSetVirtualSer. The manipulation of the argument list leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
References (6)
Core 6
Core References
Third Party Advisory, VDB Entry vdb-entry
technical-description
https://vuldb.com/?id.320356
Permissions Required, VDB Entry signature
permissions-required
https://vuldb.com/?ctiid.320356
Exploit, Third Party Advisory, VDB Entry third-party-advisory
https://vuldb.com/?submit.632038
Exploit, Third Party Advisory related
https://github.com/ZZ2266/.github.io/tree/main/AC20/formSetVirtualSer
Exploit, Third Party Advisory exploit
https://github.com/ZZ2266/.github.io/tree/main/AC20/formSetVirtualSer#poc-python-exploit-script
Product product
https://www.tenda.com.cn/
Scores
CVSS v3
8.8
EPSS
0.0076
EPSS Percentile
50.5%
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
CWE-787
Status
published
Products (1)
tenda/ac20_firmware
16.03.08.12
Published
Aug 16, 2025
Tracked Since
Feb 18, 2026