Skip to content
Fencer Vulns
high 7.5

CVE-2017-6021 json

In Schneider Electric ClearSCADA 2014 R1 (build 75.5210) and prior, 2014 R1.1 (build 75.5387) and prior, 2015 R1 (build 76.5648) and prior,…

published 2018-05-14 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-15089

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.6%
EPSS 1.6% chance of exploitation in 30 days, percentile 76%
public exploits
0
none known

Summary

In Schneider Electric ClearSCADA 2014 R1 (build 75.5210) and prior, 2014 R1.1 (build 75.5387) and prior, 2015 R1 (build 76.5648) and prior, and 2015 R2 (build 77.5882) and prior, an attacker with network access to the ClearSCADA server can send specially crafted sequences of commands and data packets to the ClearSCADA server that can cause the ClearSCADA server process and ClearSCADA communications driver processes to terminate. A CVSS v3 base score of 7.5 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-17-068-01 updated cvss 7.5

Schneider Electric ClearSCADA

  • Schneider Electric Software, LLC ClearSCADA 2014 R1 <= 75.5210 Schneider Electric Software, LLC ClearSCADA 2014 R1.1 <= 75.5387 Schneider Electric Software, LLC ClearSCADA 2015 R1 <= 76.5648 Schneider Electric Software, LLC ClearSCADA 2015 R2 <= 77.5882
    affected: vendor fix, mitigation “ClearSCADA 2014 R1.1 hotfix build 75.6239”

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

1.64% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

  • Schneider Electric SE ClearSCADA

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.