CVE-2022-29951

9.1 CRITICAL 1% exploit odds Fix listed Auth & access Device

What it is

JTEKT TOYOPUC PLCs through 2022-04-29 mishandle authentication. They utilize the CMPLink/TCP protocol (configurable on ports 1024-65534 on either TCP or UDP) for a wide variety of engineering purposes such as starting and stopping the PLC, downloading and uploading projects, and changing configuration settings. This protocol does not have any authentication features, allowing any attacker capable of communicating with the port in question to invoke (a subset of) desired functionality.

At a glance

Exploitability: Can be exploited over the network without logging in. High risk of data tampering, service disruption.
Exploit odds: 1.3% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2022-07-26 22:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 04:41 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 1.3% in the next 30 days (EPSS).
Severity: 9.1 CRITICAL (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2022-07-26 22:15 UTC
Last modified: 2026-06-17 04:41 UTC
Exploit probability: 1.3% · EPSS, next 30 days
Weakness: CWE-306 · Missing authentication
Record status: Modified

Affected

Jtekt pc10g-cpu tcc-6353 Firmware
Jtekt pc10ge tcc-6464 Firmware
Jtekt pc10p tcc-6372 Firmware
Jtekt pc10p-dp tcc-6726 Firmware
Jtekt pc10p-dp-io tcc-6752 Firmware
Jtekt pc10b-p tcc-6373 Firmware
Jtekt pc10b tcc-1021 Firmware
Jtekt pc10e tcc-4737 Firmware

Attack profile CVSS 3.1 · 9.1

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: High
Availability: High

Raw vector

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

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2022-29951.md and follow it. Check whether this project is affected by CVE-2022-29951. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record