CVE-2026-7032 Tenda F456 SafeEmailFilter buffer overflow

High 8.7 Published Updated

Remote attackers can trigger a buffer overflow in the SafeEmailFilter function of Tenda F456 routers, potentially leading to code execution or service disruption.

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-2026-7032?

CVE-2026-7032 is a high-severity memory corruption vulnerability in Tenda F456, published on 26 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A flaw has been found in Tenda F456 1.0.0.5. Affected is the function SafeEmailFilter of the file /goform/SafeEmailFilter. This manipulation of the argument page causes buffer overflow. The attack can be initiated remotely. The exploit has been published and may be used.

Weakness: CWE-120, CWE-119

Which versions are affected by CVE-2026-7032?

It affects 1 product.

Products include Tenda F456 Firmware.

How do I fix CVE-2026-7032?

No fix has been published for CVE-2026-7032 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-2026-7032 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-7032 exists.

Sources

Also known as GHSA-39w8-mgpw-2c82.

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