CVE-2019-3953 Memory corruption in Advantech WebAccess/SCADA

Critical 9.8 Published Updated

Remote unauthenticated attackers can execute arbitrary code via a stack-based buffer overflow in Advantech WebAccess/SCADA.

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-2019-3953?

CVE-2019-3953 is a critical memory corruption vulnerability in Advantech Webaccess, published on 18 Jun 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Stack-based buffer overflow in Advantech WebAccess/SCADA 8.4.0 allows a remote, unauthenticated attacker to execute arbitrary code by sending a crafted IOCTL 10012 RPC call.

Weakness: CWE-787

Which versions are affected by CVE-2019-3953?

It affects 1 product.

Products include Advantech Webaccess.

How do I fix CVE-2019-3953?

No fix has been published for CVE-2019-3953 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-2019-3953 being exploited?

There is no known exploitation of CVE-2019-3953 in the wild and no public exploit code.

All Advantech Webaccess vulnerabilities

Sources

Also known as GHSA-cx6v-5hc5-7wjv.

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