Description
A weakness has been identified in Tenda AC20 16.03.08.12. This affects the function httpd of the file /goform/openSchedWifi. Executing a manipulation of the argument schedStartTime/schedEndTime can lead to buffer overflow. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks.
References (5)
Core 5
Core References
Third Party Advisory, VDB Entry vdb-entry
technical-description
https://vuldb.com/?id.336389
Permissions Required, VDB Entry signature
permissions-required
https://vuldb.com/?ctiid.336389
Third Party Advisory, VDB Entry third-party-advisory
https://vuldb.com/?submit.712917
Exploit, Third Party Advisory exploit
https://github.com/Madgeaaaaa/MY_VULN_2/blob/main/Tenda/VULN14/AC20_openSchedWifi.md
Product product
https://www.tenda.com.cn/
Scores
CVSS v3
8.8
EPSS
0.0014
EPSS Percentile
33.3%
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
yes
Technical Impact
partial
Details
CWE
CWE-120
CWE-119
Status
published
Products (1)
tenda/ac20_firmware
16.03.08.12
Published
Dec 14, 2025
Tracked Since
Feb 18, 2026