CVE-2026-86165 Tenda HG10 formURL buffer overflow
Remote attackers can trigger a buffer overflow in the Tenda HG10 router's formURL function, potentially leading to code execution or service disruption.
- 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-2026-86165?
CVE-2026-86165 is a critical memory corruption vulnerability in Tenda HG10, published on 6 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability was found in Tenda HG10 300001138. This vulnerability affects the function formURL of the file /boaform/admin/formURL. Performing a manipulation of the argument Keywd/urlFQDN results in buffer overflow. The attack may be initiated remotely. The exploit has been made public and could be used.
Which versions are affected by CVE-2026-86165?
How do I fix CVE-2026-86165?
No fix has been published for CVE-2026-86165 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-2026-86165 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-86165 exists.
Sources
Also known as GHSA-rpvc-23w4-j8mm.