// For flags

CVE-2022-43509

Omron CX-One CX-Programmer CXP File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Out-of-bounds write vulnerability exists in CX-Programmer v.9.77 and earlier, which may lead to information disclosure and/or arbitrary code execution by having a user to open a specially crafted CXP file.

Existe una vulnerabilidad de escritura fuera de los límites en CX-Programmer v.9.77 y versiones anteriores, que puede provocar la divulgación de información y/o la ejecución de código arbitrario al pedirle a un usuario que abra un archivo CXP especialmente manipulado.

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Omron CX-One. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the parsing of CXP files in the CX-Programmer module. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.

*Credits: xina1i
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-10-22 CVE Reserved
  • 2022-12-07 CVE Published
  • 2024-08-03 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-787: Out-of-bounds Write
CAPEC
References (2)
URL Tag Source
https://jvn.jp/en/vu/JVNVU92877622/index.html Third Party Advisory
https://jvn.jp/vu/JVNVU92877622/index.html Third Party Advisory
URL Date SRC
URL Date SRC
URL Date SRC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Omron
Search vendor "Omron"
 Cx-programmer
Search vendor "Omron" for product "Cx-programmer"
 <= 9.77
Search vendor "Omron" for product "Cx-programmer" and version " <= 9.77"
-
Affected