CVE-2017-6021: aveva clearscada Improper Input Validation
Vulnerability summary
CVE-2017-6021 is a high (CVSS 7.5) Improper Input Validation vulnerability in aveva clearscada. EPSS estimates a 1.67% chance of exploitation in the next 30 days, higher than 76.4% of scored vulnerabilities.
Timeline
- 14-05-2018PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
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).
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
1.67%
Chance of exploitation in the next 30 days
Percentile
76%
Versus all other CVEs
30-day change
0.00 pp
From 1.67% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Aveva1 product
- clearscada≤ 2010
Schneider electric se1 product
- clearscada2014 R1 (build 75.5210) and prior | 2014 R1.1 (build 75.5387) and prior | 2015 R1 (build 76.5648) and prior | 2015 R2 (build 77.5882) and prior
Schneider-electric1 product
- clearscada2014:r1 | 2014:r1.1 | 2015:r1 | 2015:r2
3 vendors · 3 products
References
2 links- ics-cert.us-cert.gov/advisories/ICSA-17-068-01X Refsource MISCThird Party AdvisoryUS Government Resource