CVE-2026-11522
Tenda W20E setPortMirror formSetPortMirror stack-based overflow
- State
- Published
- Severity
- 8.7 High
- Published
- Jun 8, 2026
- Updated
- Jun 8, 2026
- Reserved
- Jun 7, 2026
Description
A vulnerability was detected in Tenda W20E 15.11.0.6. This vulnerability affects the function formSetPortMirror of the file /goform/setPortMirror. Performing a manipulation of the argument portMirrorMirroredPorts results in stack-based buffer overflow. The attack can be initiated remotely. The exploit is now public and may 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 |
|---|---|
W20ETenda |
|
References
- VDB-369142 | Tenda W20E setPortMirror formSetPortMirror stack-based overflowvdb-entrytechnical-description
- VDB-369142 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- CVE-2026-11522 | CVE Analysis and Reportthird-party-advisory
- Submit #836469 | Tenda W20E Enterprise Router V15.11.0.6 Stack-based Buffer Overflowthird-party-advisory
- https://github.com/Robots10/IoT_vlu/blob/main/reports/Tenda/formSetPortMirror/portMirrorMirroredPorts.mdexploit
- https://www.tenda.com.cn/product
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