CVE-2026-11553 Tenda HG7/HG9/HG10 formPPPEdit stack-based overflow
Remote attackers can trigger a stack-based buffer overflow in Tenda HG7/HG9/HG10 routers via the formPPPEdit function, 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-2026-11553?
CVE-2026-11553 is a high-severity memory corruption vulnerability in Tenda HG10, published on 8 Jun 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 HG7, HG9 and HG10 300001138_en_xpon. This affects the function formPPPEdit of the file /boaform/formPPPEdit. The manipulation of the argument encodename results in stack-based buffer overflow. The attack can be launched remotely. The exploit has been made public and could be used.
Which versions are affected by CVE-2026-11553?
How do I fix CVE-2026-11553?
No fix has been published for CVE-2026-11553 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-2026-11553 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-11553 exists.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-wf5q-f55f-rq8w.