CVE-2020-22079 Memory corruption in n/a

Critical 9.8 Published 29 Oct 2021 Updated 4 Aug 2024

Remote attackers can execute arbitrary code on Tenda AC-10U routers via a stack-based buffer overflow in the time configuration interface.

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-2020-22079?

CVE-2020-22079 is a critical memory corruption vulnerability in n/a, published on 29 Oct 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Stack-based buffer overflow in Tenda AC-10U AC1200 Router US_AC10UV1.0RTL_V15.03.06.48_multi_TDE01 allows remote attackers to execute arbitrary code via the timeZone parameter to goform/SetSysTimeCfg.

Weakness: CWE-787

Which versions are affected by CVE-2020-22079?

It affects 2 products.

Products include Tendacn Ac10u Firmware, Tendacn Ac9 Firmware.

How do I fix CVE-2020-22079?

No fix has been published for CVE-2020-22079 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-2020-22079 being exploited?

There is no known exploitation of CVE-2020-22079 in the wild and no public exploit code.

Sources

Also known as GHSA-6w98-944g-gpp5.