Back to Database
Status published
Medium
CVE-2021-20836
Out-of-bounds read vulnerability in CX-Supervisor v4.0.0.13 and v4.0.0.16 allows an...
Vulnerability Description
Out-of-bounds read vulnerability in CX-Supervisor v4.0.0.13 and v4.0.0.16 allows an attacker with administrative privileges to cause information disclosure and/or arbitrary code execution by opening a specially crafted SCS project files.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2021-20836
Credits & Attribution
No credits recorded in the NVD database.
References
More from OMRON Corporation
View All →CVE-2025-1384
Least Privilege Violation Vulnerability in the communications functions of NJ/NX-series Machine Automation Controllers
High
7
CVE-2025-0591
Out-of-bounds Read vulnerability in CX-Programmer
High
7.8
CVE-2024-49501
Sysmac Studio provided by OMRON Corporation contains an incorrect authorization...
Medium
5.7
CVE-2024-33687
Insufficient verification of data authenticity issue exists in NJ Series...
Unknown
0
CVE-2024-31413
Free of pointer not at start of buffer vulnerability exists...
Unknown
0
Affected Vendor
OMRON Corporation
View all reports →Affected Software
OMRON CX-Supervisor
Vulnerable Versions:
v4.0.0.13 and v4.0.0.16
Timeline
Official Publish:
October 19th, 2021
Last Modified:
August 3rd, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.