CVE-2026-75976 TRENDnet TEW-823DRU NVRAM wan.cgi strcpy stack-based overflow
Remote attackers can trigger a stack-based buffer overflow in the wan.cgi component via the wan_l2tp_password parameter, potentially leading to code execution.
- 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-2026-75976?
CVE-2026-75976 is a critical memory corruption vulnerability in TRENDnet TEW-823DRU, published on 18 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A weakness has been identified in TRENDnet TEW-823DRU 1.1.02b01. Impacted is the function strcpy of the file /cgi-bin/wan.cgi of the component NVRAM. This manipulation of the argument wan_l2tp_password causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks.
Which versions are affected by CVE-2026-75976?
How do I fix CVE-2026-75976?
No fix has been published for CVE-2026-75976 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-2026-75976 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-75976 exists.
Sources
Also known as GHSA-h8w7-jqg9-6hfv.