CVE-2026-2191
Tenda AC9 formGetDdosDefenceList stack-based overflow
- State
- Published
- Severity
- 8.6 High
- Published
- Feb 8, 2026
- Updated
- Feb 23, 2026
- Reserved
- Feb 7, 2026
Description
A weakness has been identified in Tenda AC9 15.03.06.42_multi. Affected is the function formGetDdosDefenceList. This manipulation of the argument security.ddos.map causes stack-based buffer overflow. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.6 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 7.2 High | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 3.0 | 7.2 High | CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 2.0 | 8.3 High | AV:N/AC:L/Au:M/C:C/I:C/A:C/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
AC9Tenda |
|
References
- VDB-344894 | Tenda AC9 formGetDdosDefenceList stack-based overflowvdb-entrytechnical-description
- VDB-344894 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- Submit #749800 | Tenda AC9 v1.0/V3.0 V15.03.06.42_multi Stack-based Buffer Overflowthird-party-advisory
- https://github.com/glkfc/IoT-Vulnerability/blob/main/Tenda/tenda3.mdexploit
- https://www.tenda.com.cn/product
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