CVE-2026-77945

HIGH 7.4

TRENDnet TEW-821DAP ssi upload.cgi command injection

CVSS Score

7.4

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-77 CWE-74
Vendor	trendnet
Product	tew-821dap
Published	Aug 22, 2026

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CVSS v3 Breakdown

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

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

TRENDnet / TEW-821DAP

2.2.01b05

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/394174 vuldb.com: https://vuldb.com/vuln/394174/cti vuldb.com: https://vuldb.com/cve/CVE-2026-77945 vuldb.com: https://vuldb.com/submit/881248 github.com: https://github.com/dxz0069/WAVLINK-WN530H4-Command-Injection-in-set_add_routing/blob/main/TEW-821DAP_ssi_Arbitrary_File_Command_Injection.md

Credits

🔍 ST4R0002 (VulDB User)