CVE-2026-82542 Tenda HG10 Boa Web Server formIPv6Routing buffer overflow

Critical 10.0 Published Updated

Remote attackers can trigger a buffer overflow in the Boa Web Server via the formIPv6Routing 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-2026-82542?

CVE-2026-82542 is a critical memory corruption vulnerability in Tenda HG10, published on 30 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A weakness has been identified in Tenda HG10 300001138. Affected by this issue is the function formIPv6Routing of the file /boaform/admin/formIPv6Routing of the component Boa Web Server. This manipulation of the argument destNet causes buffer overflow. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks.

Weakness: CWE-120, CWE-119

Which versions are affected by CVE-2026-82542?

How do I fix CVE-2026-82542?

No fix has been published for CVE-2026-82542 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-2026-82542 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-82542 exists.

Sources

Also known as GHSA-rhpr-6c55-q8q3.

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