CVE-2021-20588 is a critical vulnerability affecting numerous Mitsubishi Electric FA Engineering Software products, stemming from improper handling of length parameters in network packets. A remote, unauthenticated attacker can exploit this by spoofing Mitsubishi devices and sending crafted reply packets, leading to a Denial of Service (DoS) condition and potentially arbitrary code execution. With a CVSS score of 9.8, this vulnerability is easily exploitable over the network with no user interaction required, posing a high risk to confidentiality, integrity, and availability. While no active exploitation or public exploit code has been identified, and community discussion is minimal, the broad impact across many critical industrial software products warrants immediate attention and patching.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
All Versions ImpactedCPE matchmatch criteria | cpe:2.3:a:mitsubishielectric:c_controller_module_setting_and_monitoring_tool:*:*:*:*:*:*:*:* | ||
<= 1.112rCPE matchmatch criteria | cpe:2.3:a:mitsubishielectric:cpu_module_logging_configuration_tool:*:*:*:*:*:*:*:* | ||
<= 1.011mCPE matchmatch criteria | cpe:2.3:a:mitsubishielectric:cw_configurator:*:*:*:*:*:*:*:* | ||
<= 3.44wCPE matchmatch criteria | cpe:2.3:a:mitsubishielectric:data_transfer:*:*:*:*:*:*:*:* | ||
All Versions ImpactedCPE matchmatch criteria | cpe:2.3:a:mitsubishielectric:ezsocket:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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.