CVE-2023-22357

Name: CVE-2023-22357
Creator: NVD / NIST
Published: 2023-01-17T10:15:11.887+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.17%

Last modified Jun 17, 2026

CVE-2023-22357 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Active debug code exists in OMRON CP1L-EL20DR-D all versions, which may lead to a command that is not specified in FINS protocol being executed without authentication. A remote unauthenticated attacker may read/write in arbitrary area of the device memory, which may lead to overwriting the firmware, causing a denial-of-service (DoS) condition, and/or arbitrary code execution.. EPSS estimates a 1.17% chance of exploitation in the next 30 days.

Description

Active debug code exists in OMRON CP1L-EL20DR-D all versions, which may lead to a command that is not specified in FINS protocol being executed without authentication. A remote unauthenticated attacker may read/write in arbitrary area of the device memory, which may lead to overwriting the firmware, causing a denial-of-service (DoS) condition, and/or arbitrary code execution.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

1.17%

63.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-489

Affected Software

Vendor	Product	Versions
Omron	Cp1l-El20dr-D Firmware	All versions

References

https://jvn.jp/en/vu/JVNVU97575890/index.htmlThird Party Advisory
https://jvn.jp/en/vu/JVNVU97575890/index.htmlThird Party Advisory

Timeline

Published: Jan 17, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-22357?

How severe is CVE-2023-22357?

CVE-2023-22357 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.17% probability of exploitation in the next 30 days.

How do I fix CVE-2023-22357?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-22357?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST