CVE-2026-11499 Tenda HG7/HG9/HG10 formDOMAINBLK stack-based overflow
Remote attackers can trigger a stack-based buffer overflow in Tenda HG7, HG9, and HG10 routers via the formDOMAINBLK function, potentially leading to code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-11499?
CVE-2026-11499 is a critical memory corruption vulnerability in Tenda HG10, published on 8 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability was determined in Tenda HG7, HG9 and HG10 300001138_en_xpon. This affects the function formDOMAINBLK of the file /boaform/formDOMAINBLK. Executing a manipulation of the argument blkDomain can lead to stack-based buffer overflow. The attack may be performed from remote.
Which versions are affected by CVE-2026-11499?
How do I fix CVE-2026-11499?
No fix has been published for CVE-2026-11499 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-2026-11499 being exploited?
There is no known exploitation of CVE-2026-11499 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-xv62-77m9-3736.