CVE-2026-7607 TRENDnet TEW-821DAP Firmware Udpate auto_update_firmware buffer overflow
Remote attackers can exploit a buffer overflow in the firmware update function of an end-of-life TRENDnet access point to execute arbitrary code.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-7607?
CVE-2026-7607 is a high-severity memory corruption vulnerability in TRENDnet TEW-821DAP, published on 2 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A security vulnerability has been detected in TRENDnet TEW-821DAP 1.12B01. Impacted is the function auto_update_firmware of the component Firmware Udpate. The manipulation of the argument str leads to buffer overflow. The attack may be initiated remotely. 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.
Which versions are affected by CVE-2026-7607?
It affects 1 product.
Products include Trendnet Tew-821dap Firmware.
How do I fix CVE-2026-7607?
No fix has been published for CVE-2026-7607 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-7607 being exploited?
There is no known exploitation of CVE-2026-7607 in the wild and no public exploit code.
Other vulnerabilities in TRENDnet TEW-821DAP
Sources
Also known as GHSA-v7fj-8r83-h43x.