CVE-2026-10190 Tenda W12 Web Management httpd cgiSysWebTimeoutSet denial of service
Remote attackers can cause a denial of service in Tenda W12 routers by manipulating the web_over_time argument in the web management interface.
- 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-2026-10190?
CVE-2026-10190 is a high-severity denial of service vulnerability in Tenda W12, published on 31 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was found in Tenda W12 3.0.0.7(4763). This issue affects the function cgiSysWebTimeoutSet of the file /bin/httpd of the component Web Management Interface. The manipulation of the argument web_over_time results in denial of service. It is possible to launch the attack remotely. The exploit has been made public and could be used.
Weakness: CWE-404
Which versions are affected by CVE-2026-10190?
How do I fix CVE-2026-10190?
No fix has been published for CVE-2026-10190 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-10190 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-10190 exists.
Sources
Also known as GHSA-hgcw-qw4m-rwrh.