CVE-2026-3808 Tenda FH1202 webtypelibrary formWebTypeLibrary stack-based overflow
Remote attackers can trigger a stack-based buffer overflow in the Tenda FH1202 router via the webSiteId parameter, potentially leading to arbitrary 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-2026-3808?
CVE-2026-3808 is a high-severity memory corruption vulnerability in Tenda Fh1202 Firmware, published on 9 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was detected in Tenda FH1202 1.2.0.14(408). The affected element is the function formWebTypeLibrary of the file /goform/webtypelibrary. Performing a manipulation of the argument webSiteId results in stack-based buffer overflow. The attack may be initiated remotely. The exploit is now public and may be used.
Which versions are affected by CVE-2026-3808?
It affects 1 product.
Products include Tenda Fh1202 Firmware.
How do I fix CVE-2026-3808?
No fix has been published for CVE-2026-3808 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-2026-3808 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3808 exists.
Other vulnerabilities in Tenda Fh1202 Firmware
Sources
Also known as GHSA-c625-8jwc-p6h6.