What is CVE-2017-16726?

CVE-2017-16726 is a critical-severity vulnerability in Beckhoff Twincat, classified under Improper Authorization. CVSS score: 9.1/10. Published 2018-06-27.

How severe is CVE-2017-16726?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Auth bypass in Beckhoff Twincat

CVE-2017-16726

Beckhoff TwinCAT supports communication over ADS. ADS is a protocol for industrial automation in protected environments. ADS has not been designed to achieve security purposes and therefore does not include any encryption algorithms becaus…

EPSS: 0.005 (40.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Beckhoff Twincat
Ics-cert Beckhoff Twincat — versions Version 2, Version 3

Weakness classification (CWE)

CWE-285 — Improper Authorization
CWE-326 — Inadequate Encryption Strength

References

ics-cert@hq.dhs.gov (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2017-16726?: CVE-2017-16726 is a critical-severity vulnerability in Beckhoff Twincat, classified under Improper Authorization. CVSS score: 9.1/10. Published 2018-06-27.
How severe is CVE-2017-16726?: Critical severity. CVSS v3 base score is 9.1 out of 10.