CVE-2020-28221 is a critical improper input validation vulnerability (CWE-20) affecting Schneider Electric's EcoStruxure Operator Terminal Expert and Pro-face BLUE software. This flaw allows for arbitrary code execution on Human-Machine Interfaces (HMIs) when the Ethernet Download feature is enabled. With a CVSS score of 9.8 (CRITICAL), it presents a severe risk due to its network-based attack vector, low complexity, and potential for complete compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion, indicating awareness among security researchers.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
3.1CPE matchmatch criteria | cpe:2.3:a:schneider-electric:ecostruxure_operator_terminal_expert:3.1:*:*:*:*:*:*:* | ||
3.1CPE matchmatch criteria | cpe:2.3:a:schneider-electric:ecostruxure_operator_terminal_expert:3.1:sp1a:*:*:*:*:*:* | ||
3.1CPE matchmatch criteria | cpe:2.3:a:schneider-electric:pro-face_blue:3.1:*:*:*:*:*:*:* | ||
3.1CPE matchmatch criteria | cpe:2.3:a:schneider-electric:pro-face_blue:3.1:sp1a:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.