CVE-2025-14656
Tenda AC20 openSchedWifi httpd buffer overflow
- State
- Published
- Severity
- 8.7 High
- Published
- Dec 14, 2025
- Updated
- Feb 24, 2026
- Reserved
- Dec 13, 2025
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 8.8 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 3.0 | 8.8 High | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 2.0 | 9.0 High | AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
AC20Tenda |
|
References
- VDB-336389 | Tenda AC20 openSchedWifi httpd buffer overflowvdb-entrytechnical-description
- VDB-336389 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- Submit #712917 | Tenda AC20 V16.03.08.12 Buffer Overflowthird-party-advisory
- https://github.com/Madgeaaaaa/MY_VULN_2/blob/main/Tenda/VULN14/AC20_openSchedWifi.mdexploit
- https://www.tenda.com.cn/product
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.