CVE-2026-7609: TRENDnet TEW-821DAP Firmware Udpate diagnostic tools_diagnostic os command injection
A flaw has been found in TRENDnet TEW-821DAP up to 1.12B01. The impacted element is the function toolsdiagnostic 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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-7609?
CVE-2026-7609 has been classified as a significant security vulnerability due to its ability to allow OS command injection.
How do I fix CVE-2026-7609?
To mitigate CVE-2026-7609, users should update their TRENDnet TEW-821DAP to the latest firmware version beyond 1.12B01.
What systems are affected by CVE-2026-7609?
CVE-2026-7609 affects the TRENDnet TEW-821DAP firmware versions up to and including 1.12B01.
What type of vulnerability is CVE-2026-7609?
CVE-2026-7609 is an OS command injection vulnerability found in the firmware update diagnostic tools of TRENDnet TEW-821DAP.
Is CVE-2026-7609 actively exploited?
While there have been reports of the vulnerability’s existence, it is recommended to assume potential active exploitation until mitigations are applied.