9.8

CVE-2020-28221: schneider-electric ecostruxure_operator_terminal_expert Improper Input Validation

CVSS: 9.8v3.1CriticalModified
Published 25-01-2021Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-28221 is a critical (CVSS 9.8) Improper Input Validation vulnerability in schneider-electric ecostruxure_operator_terminal_expert. EPSS estimates a 2.14% chance of exploitation in the next 30 days, higher than 81.7% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
2.14%
0%100%
Low · +0.09 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 25-01-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

A CWE-20: Improper Input Validation vulnerability exists in EcoStruxure™ Operator Terminal Expert and Pro-face BLUE (version details in the notification) that could cause arbitrary code execution when the Ethernet Download feature is enable on the HMI.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

2.14%

Chance of exploitation in the next 30 days

Percentile

82%

Versus all other CVEs

30-day change

+0.09 pp

From 2.05% on 20-09-2026

20-09-202620-10-2026
EPSS score
2.14%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Schneider-electric2 products

1 vendor · 2 products

References

1 links