CVE-2023-26805 Memory corruption in n/a

Critical 9.8 Published 19 Mar 2023 Updated 27 Feb 2025

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

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-2023-26805?

CVE-2023-26805 is a critical memory corruption vulnerability in n/a, published on 19 Mar 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Tenda W20E v15.11.0.6 (US_W20EV4.0br_v15.11.0.6(1068_1546_841)_CN_TDC) is vulnerable to Buffer Overflow via function formIPMacBindModify.

Weakness: CWE-787

Which versions are affected by CVE-2023-26805?

It affects 1 product.

Products include Tenda W20e Firmware.

How do I fix CVE-2023-26805?

No fix has been published for CVE-2023-26805 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-2023-26805 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-26805 exists.

Sources

Also known as GHSA-43hv-qjpp-xgv7.