CVE-2026-6632 Tenda F451 httpd SafeClientFilter fromSafeClientFilter buffer overflow
A buffer overflow in the Tenda F451 router's httpd service allows remote attackers to execute arbitrary code or cause a denial of service.
- 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-2026-6632?
CVE-2026-6632 is a high-severity memory corruption vulnerability in Tenda F451, published on 20 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was identified in Tenda F451 1.0.0.7_cn_svn7958. The affected element is the function fromSafeClientFilter of the file /goform/SafeClientFilter of the component httpd. The manipulation of the argument menufacturer/Go leads to buffer overflow. Remote exploitation of the attack is possible. The exploit is publicly available and might be used.
Which versions are affected by CVE-2026-6632?
How do I fix CVE-2026-6632?
No fix has been published for CVE-2026-6632 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-2026-6632 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-6632 exists.
Sources
Also known as GHSA-q6vj-q94p-g3rc.