CVE-2026-36777 Memory corruption in n/a
Attackers can cause a Denial of Service on Tenda W3 routers via a crafted HTTP request exploiting a stack overflow.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-36777?
CVE-2026-36777 is a medium-severity memory corruption vulnerability in n/a, published on 9 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Shenzhen Tenda Technology Co., Ltd Tenda W3 Wireless Router v1.0.0.3(2204) was discovered to contain a stack overflow in the param_1 parameter of the formSetCfm function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted HTTP request.
Weakness: CWE-121
Which versions are affected by CVE-2026-36777?
How do I fix CVE-2026-36777?
No fix has been published for CVE-2026-36777 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-2026-36777 being exploited?
There is no known exploitation of CVE-2026-36777 in the wild and no public exploit code.
Sources
Also known as GHSA-cp2j-fxf4-h2xw.