CVE-2019-3940

Description

Advantech WebAccess 8.3.4 is vulnerable to file upload attacks via unauthenticated RPC call. An unauthenticated, remote attacker can use this vulnerability to execute arbitrary code.

Category

9.8
CVSS
Severity: Critical
CVSS 3.0 •
CVSS 2.0 •
EPSS 5.02% Top 15%
Third-Party Advisory securityfocus.com Third-Party Advisory tenable.com
Affected: Advantech WebAccess
Published at:
Updated at:

References

Link Tags
https://www.tenable.com/security/research/tra-2019-15 third party advisory
http://www.securityfocus.com/bid/107847 third party advisory vdb entry

Frequently Asked Questions

What is the severity of CVE-2019-3940?
CVE-2019-3940 has been scored as a critical severity vulnerability.
How to fix CVE-2019-3940?
To fix CVE-2019-3940, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-3940 being actively exploited in the wild?
It is possible that CVE-2019-3940 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~5% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2019-3940?
CVE-2019-3940 affects Advantech WebAccess.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.