CVE-2026-7609 — MEDIUM (6.3)

Vulnerability Description

A flaw has been found in TRENDnet TEW-821DAP up to 1.12B01. The impacted element is the function tools_diagnostic of the file /tmp/diagnostic of the component Firmware Udpate. This manipulation causes os command injection. Remote exploitation of the attack is possible. The exploit has been published and may be used. The vendor explains: "That firmware version will only work on our hardware version v1.xR. We have already EOL that product 8 years ago and are no longer selling". This vulnerability only affects products that are no longer supported by the maintainer.

CVSS Score

6.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

LOW

Affected Products

Vendor	Product	Versions
Trendnet	Tew-821Dap Firmware	1.12b01
Trendnet	Tew-821Dap	1.0r

Related Weaknesses (CWE)

CWE-78 CWE-77

References

https://github.com/IOTRes/IOT_Firmware_Update/blob/main/Trendnet/TEW-821DAP_CI2.ExploitThird Party Advisory
https://vuldb.com/submit/806216Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/360566Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/360566/ctiPermissions RequiredVDB Entry

FAQ

What is CVE-2026-7609?

CVE-2026-7609 is a vulnerability with a CVSS score of 6.3 (MEDIUM). A flaw has been found in TRENDnet TEW-821DAP up to 1.12B01. The impacted element is the function tools_diagnostic of the file /tmp/diagnostic of the component Firmware Udpate. This manipulation causes...

How severe is CVE-2026-7609?

CVE-2026-7609 has been rated MEDIUM with a CVSS base score of 6.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-7609?

Check the references section above for vendor advisories and patch information. Affected products include: Trendnet Tew-821Dap Firmware, Trendnet Tew-821Dap.