CVE-2026-77945
TRENDnet TEW-821DAP ssi upload.cgi command injection
- State
- Published
- Severity
- 5.3 Medium
- Published
- Aug 22, 2026
- Updated
- Aug 25, 2026
- Reserved
- Aug 21, 2026
Description
A vulnerability was found in TRENDnet TEW-821DAP 2.2.01b05. Affected is an unknown function of the file /cgi-bin/upload.cgi of the component ssi. Performing a manipulation of the argument filename results in command injection. The attack may be initiated remotely. The exploit has been made public and could be used.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P | VulDB |
| 3.1 | 7.4 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 7.4 High | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 6.5 Medium | AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
TEW-821DAPTRENDnet |
|
References
- VDB-394174 | TRENDnet TEW-821DAP ssi upload.cgi command injectionvdb-entrytechnical-description
- VDB-394174 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- CVE-2026-77945 | CVE Analysis and Reportthird-party-advisory
- Submit #881248 | TRENDnet TEW-821DAP Wireless Access Point v2.2.01b05 Command Injectionthird-party-advisory
- https://github.com/dxz0069/WAVLINK-WN530H4-Command-Injection-in-set_add_routing/blob/main/TEW-821DAP_ssi_Arbitrary_File_Command_Injection.mdexploit
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