CVE-2023-39786 Memory corruption in n/a

High 7.5 Published Updated

A stack overflow in the Tenda AC8V4 router allows attackers to execute arbitrary code or cause a denial of service via the time parameter.

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-2023-39786?

CVE-2023-39786 is a high-severity memory corruption vulnerability in Tenda Ac8 Firmware, published on 21 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Tenda AC8V4 V16.03.34.06 was discovered to contain a stack overflow via the time parameter in the sscanf function.

Weakness: CWE-787

Which versions are affected by CVE-2023-39786?

It affects 1 product.

Products include Tenda Ac8 Firmware.

How do I fix CVE-2023-39786?

No fix has been published for CVE-2023-39786 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-2023-39786 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-39786 exists.

All Tenda Ac8 Firmware vulnerabilities

Sources

Also known as GHSA-c5f9-8cr6-fv89.

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