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CVE-2020-14521

29
FAUCET Score

CVE-2020-14521 is a critical malicious code execution vulnerability affecting multiple Mitsubishi Electric Factory Automation engineering software products. With a CVSS score of 9.8, this vulnerability allows unauthenticated remote attackers to achieve high impact on confidentiality, integrity, and availability, potentially leading to information theft, data modification, or denial-of-service. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion with 11 mentions and media coverage, indicating awareness and potential future interest.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:a:mitsubishielectric:c_controller_interface_module_utility:*:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:a:mitsubishielectric:c_controller_module_setting_and_monitoring_tool:*:*:*:*:*:*:*:*
1.00aCPE matchmatch criteria
cpe:2.3:a:mitsubishielectric:cc-link_ie_control_network_data_collector:1.00a:*:*:*:*:*:*:*
1.00aCPE matchmatch criteria
cpe:2.3:a:mitsubishielectric:cc-link_ie_field_network_data_collector:1.00a:*:*:*:*:*:*:*
1.00aCPE matchmatch criteria
cpe:2.3:a:mitsubishielectric:cc-link_ie_tsn_data_collector:1.00a:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.3HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.6
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.27%
Probability of exploitation in next 30 days
EPSS Percentile
66.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0127 is in the 53rd percentile among its peer group of 36,862 CVEs.

Social Chatter

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.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cisa.gov / uscert/ics/advisories/icsa-20-212-04
Third Party AdvisoryUS Government Resource
mitsubishielectric.com / en/psirt/vulnerability/pdf/2020-007_en.pdf
Vendor Advisory