What is CVE-2019-3940?

CVE-2019-3940 is a critical-severity vulnerability in Advantech Webaccess, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2019-04-09.

How severe is CVE-2019-3940?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Arbitrary file upload in Advantech Webaccess

CVE-2019-3940

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.

Vulnerability class: Unrestricted File Upload

EPSS: 0.041 (89.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Advantech Webaccess — versions 8.3.4

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

vulnreport@tenable.com (Third Party Advisory, x_refsource_MISC)
vulnreport@tenable.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)

Frequently asked questions

What is CVE-2019-3940?: CVE-2019-3940 is a critical-severity vulnerability in Advantech Webaccess, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2019-04-09.
How severe is CVE-2019-3940?: Critical severity. CVSS v3 base score is 9.8 out of 10.