CVE-2023-40845 Memory corruption in n/a

Critical 9.8 Published Updated

A buffer overflow in the Tenda AC6 router allows attackers to execute arbitrary code via unvalidated user 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-2023-40845?

CVE-2023-40845 is a critical memory corruption vulnerability in Tenda Ac6 Firmware, published on 30 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Tenda AC6 US_AC6V1.0BR_V15.03.05.16_multi_TD01.bin is vulnerable to Buffer Overflow via function 'sub_34FD0.' In the function, it reads user provided parameters and passes variables to the function without any length checks.

Weakness: CWE-787

Which versions are affected by CVE-2023-40845?

It affects 1 product.

Products include Tenda Ac6 Firmware.

How do I fix CVE-2023-40845?

No fix has been published for CVE-2023-40845 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-2023-40845 being exploited?

There is no known exploitation of CVE-2023-40845 in the wild and no public exploit code.

All Tenda Ac6 Firmware vulnerabilities

Sources

Also known as GHSA-wm9f-rqjv-qvxh.

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