CVE-2026-7151 Tenda HG3 formIPv6Routing formUploadConfig stack-based overflow
Remote attackers can trigger a stack-based buffer overflow in the Tenda HG3 router's IPv6 routing configuration handler, 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-2026-7151?
CVE-2026-7151 is a high-severity memory corruption vulnerability in Tenda HG3, published on 27 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was determined in Tenda HG3 2.0. Impacted is the function formUploadConfig of the file /boaform/formIPv6Routing. This manipulation of the argument destNet causes stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized.
Which versions are affected by CVE-2026-7151?
It affects 1 product.
Products include Tenda Hg3 Firmware.
How do I fix CVE-2026-7151?
No fix has been published for CVE-2026-7151 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-2026-7151 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-7151 exists.
Other vulnerabilities in Tenda HG3
Sources
Also known as GHSA-ppw9-xjgw-3j5g.