CVE-2023-40842 Memory corruption in n/a

Critical 9.8 Published Updated

A buffer overflow in the Tengda AC6 router allows attackers to execute arbitrary code or cause a denial of service.

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-2023-40842?

CVE-2023-40842 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

Tengda AC6 US_AC6V1.0BR_V15.03.05.16_multi_TD01.bin is vulnerable to Buffer Overflow via function "R7WebsSecurityHandler."

Weakness: CWE-787

Which versions are affected by CVE-2023-40842?

It affects 1 product.

Products include Tenda Ac6 Firmware.

How do I fix CVE-2023-40842?

No fix has been published for CVE-2023-40842 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-2023-40842 being exploited?

There is no known exploitation of CVE-2023-40842 in the wild and no public exploit code.

All Tenda Ac6 Firmware vulnerabilities

Sources

Also known as GHSA-9q6w-g4f4-87gf.

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