CVE-2019-3954 — CRITICAL (9.8)

Vulnerability 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 81024 RPC call.

CVSS Score

9.8

CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Advantech	Webaccess	8.4.0

Related Weaknesses (CWE)

CWE-787

References

https://www.tenable.com/security/research/tra-2019-28ExploitThird Party Advisory
https://www.tenable.com/security/research/tra-2019-28ExploitThird Party Advisory

FAQ

What is CVE-2019-3954?

CVE-2019-3954 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 81024 RPC call.

How severe is CVE-2019-3954?

CVE-2019-3954 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2019-3954?

Check the references section above for vendor advisories and patch information. Affected products include: Advantech Webaccess.