CVE-2025-12611
Tenda AC21 SetPptpServerCfg formSetPPTPServer buffer overflow
- State
- Published
- Severity
- 8.7 High
- Published
- Nov 3, 2025
- Updated
- Feb 24, 2026
- Reserved
- Nov 2, 2025
Description
A vulnerability was identified in Tenda AC21 16.03.08.16. This vulnerability affects the function formSetPPTPServer of the file /goform/SetPptpServerCfg. The manipulation of the argument startIp leads to buffer overflow. Remote exploitation of the attack is possible. The exploit is publicly available and might be used.
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 |
|---|---|
AC21Tenda |
|
References
- VDB-330906 | Tenda AC21 SetPptpServerCfg formSetPPTPServer buffer overflowvdb-entrytechnical-description
- VDB-330906 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- Submit #678491 | Tenda AC21 V16.03.08.16 Buffer Overflowthird-party-advisory
- https://github.com/LX-LX88/cve/issues/10broken-linkexploitissue-tracking
- 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.