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CVE-2021-47770

OpenPLC 3 - Remote Code Execution

Published: Jan 21, 2026Updated: Jan 26, 2026 Sources: CVE List NVDCWE-94
8.8HIGH
NVD MITRE
EPSS Score
0.6%
Top 54.4%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
No Fix Available

Description

OpenPLC v3 contains an authenticated remote code execution vulnerability that allows attackers with valid credentials to inject malicious code through the hardware configuration interface. Attackers can upload a custom hardware layer with embedded reverse shell code that establishes a network connection to a specified IP and port, enabling remote command execution.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-94

Affected Products

OpenPLCAutonomy
Mixed
Enterprise Software / document-mgmt
autonomycommercialUSEnterprise Softwareaka hewlett-packard autonomy

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Execution
Initial Access
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References

https://www.exploit-db.com/exploits/49803
exploit-db.com
https://www.openplcproject.com/
openplcproject.com
https://github.com/thiagoralves/OpenPLC_v3
github.com
and 1 more references View all →

Timeline

Published
Jan 21, 2026
Last Updated
Jan 26, 2026

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