Description
A security flaw has been discovered in Tenda AC20 16.03.08.12. The impacted element is the function formSetRebootTimer of the file /goform/SetSysAutoRebbotCfg of the component httpd. Performing a manipulation of the argument rebootTime results in stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks.
References (5)
Core 5
Core References
Third Party Advisory, VDB Entry vdb-entry
technical-description
https://vuldb.com/?id.336388
Permissions Required, VDB Entry signature
permissions-required
https://vuldb.com/?ctiid.336388
Third Party Advisory, VDB Entry third-party-advisory
https://vuldb.com/?submit.712910
Exploit, Third Party Advisory exploit
https://github.com/Madgeaaaaa/MY_VULN_2/blob/main/Tenda/VULN13/AC20_SetSysAutoRebbotCfg.md
Product product
https://www.tenda.com.cn/
Scores
CVSS v3
8.8
EPSS
0.0019
EPSS Percentile
40.5%
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
yes
Technical Impact
partial
Details
CWE
CWE-121
CWE-787
CWE-119
Status
published
Products (1)
tenda/ac20_firmware
16.03.08.12
Published
Dec 14, 2025
Tracked Since
Feb 18, 2026