CVE-2026-24115 Memory corruption in n/a

Critical 9.8 Published 2 Mar 2026 Updated 3 Mar 2026

A buffer overflow in the Tenda W20E router allows attackers to execute arbitrary code or cause a denial of service via crafted QoS parameters.

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-2026-24115?

CVE-2026-24115 is a critical memory corruption vulnerability in n/a, published on 2 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Failure to validate the sizes of `gstup` and `gstdwn` before concatenating them into `gstruleQos` may lead to buffer overflow.

Weakness: CWE-120

Which versions are affected by CVE-2026-24115?

It affects 1 product.

Products include Tenda W20e Firmware.

How do I fix CVE-2026-24115?

No fix has been published for CVE-2026-24115 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-2026-24115 being exploited?

There is no known exploitation of CVE-2026-24115 in the wild and no public exploit code.

Sources

Also known as GHSA-x7rc-7ghv-7gv5.