CVE-2026-7611 TRENDnet TEW-821DAP Firmware Update cameo_dev.sh platform_do_upgrade_cameo_dev data authenticity

Medium 6.3 Published 2 May 2026 Updated 4 May 2026

Insufficient verification of firmware update data authenticity allows remote attackers to bypass security checks and potentially execute arbitrary code on the device.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-7611?

CVE-2026-7611 is a medium-severity vulnerability in TRENDnet TEW-821DAP, published on 2 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability was found in TRENDnet TEW-821DAP up to 1.12B01. This impacts the function platform_do_upgrade_cameo_dev of the file cameo_dev.sh of the component Firmware Update Handler. Performing a manipulation results in insufficient verification of data authenticity. The attack is possible to be carried out remotely. The complexity of an attack is rather high. The exploitability is said to be difficult. 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.

Weakness: CWE-345

Which versions are affected by CVE-2026-7611?

It affects 1 product.

Products include Trendnet Tew-821dap Firmware.

How do I fix CVE-2026-7611?

No fix has been published for CVE-2026-7611 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-7611 being exploited?

There is no known exploitation of CVE-2026-7611 in the wild and no public exploit code.

Sources

Also known as GHSA-mr98-jgq9-qx85.