What is CVE-2021-38389?

CVE-2021-38389 is a vulnerability that exists in Advantech WebAccess versions 9.02 and prior, allowing for a stack-based buffer overflow that can potentially be exploited for remote code execution.

What is the severity of CVE-2021-38389?

CVE-2021-38389 has a severity rating of 9.8 out of 10, indicating a critical vulnerability.

How can an attacker exploit CVE-2021-38389?

An attacker can exploit CVE-2021-38389 by triggering a stack-based buffer overflow in Advantech WebAccess, potentially leading to remote code execution.

What versions of Advantech WebAccess are affected by CVE-2021-38389?

Advantech WebAccess versions 9.02 and earlier are affected by CVE-2021-38389.

Is there a fix for CVE-2021-38389?

At the moment, there is no specific fix available for CVE-2021-38389. It is recommended to apply security updates or patches provided by the vendor once they are released.

Vulnerability/
CVE-2021-38389

critical

9.8

CWE

787 121 119

18/10/2021

16/9/2024

CVE-2021-38389: Advantech WebAccess

First published: Mon Oct 18 2021(Updated: )

Advantech WebAccess versions 9.02 and prior are vulnerable to a stack-based buffer overflow, which may allow an attacker to remotely execute code.

Credit: ics-cert@hq.dhs.gov

Affected Software	Affected Version	How to fix
Advantech WebAccess	<=9.0.2
Advantech WebAccess versions 9.02 and prior

Remedy

Advantech has released Version 9.1.1 to address the stack-based buffer overflow vulnerability.

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

ICSA-21-285-02

Frequently Asked Questions

What is CVE-2021-38389?
CVE-2021-38389 is a vulnerability that exists in Advantech WebAccess versions 9.02 and prior, allowing for a stack-based buffer overflow that can potentially be exploited for remote code execution.
What is the severity of CVE-2021-38389?
CVE-2021-38389 has a severity rating of 9.8 out of 10, indicating a critical vulnerability.
How can an attacker exploit CVE-2021-38389?
An attacker can exploit CVE-2021-38389 by triggering a stack-based buffer overflow in Advantech WebAccess, potentially leading to remote code execution.
What versions of Advantech WebAccess are affected by CVE-2021-38389?
Advantech WebAccess versions 9.02 and earlier are affected by CVE-2021-38389.
Is there a fix for CVE-2021-38389?
At the moment, there is no specific fix available for CVE-2021-38389. It is recommended to apply security updates or patches provided by the vendor once they are released.

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