No exploitation reported

CVE-2022-29951

No exploitation reported by the sources we read.

Published2022-07-26
WeaknessCWE-306

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC

2022-07-2622:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-29951?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-29951?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · CISA-ADP

Jtekt nano 10gx tuc-1157 firmwareversion to verify

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD · CISA-ADP

Jtekt nano cpu tuc-6941 firmwareversion to verify

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD · CISA-ADP

Jtekt pc10b tcc-1021 firmwareversion to verify

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD · CISA-ADP

14 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

ICSA-22-172-02 CISA17 known affected
JTEKT TOYOPUC
Nano 10GX Type=TUC-1157: All versions · Nano CPU Type=TUC-6941: All versions · PC10B Type=TCC-1021: All versions · +14 more

Full record on NVD

Fix

Mitigation from the vendor CISA ICSA-22-172-02 · 17 productsWhen remote access is required, use secure methods, such as virtual private networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as its connected devices.
Mitigation from the vendor CISA ICSA-22-172-02 · 17 productsLocate control system networks and remote devices behind firewalls and isolate them from the business network.
Mitigation from the vendor CISA ICSA-22-172-02 · 17 productsMinimize network exposure for all control system devices and/or systems, use IP filter functions to allow only specific personal computer/device to connect, and ensure they are not accessible from the Internet.
Mitigation from the vendor CISA ICSA-22-172-02 · 17 productsTo prevent unauthorized devices from being connected to the free ports of the HUB, use a LAN port lock to close the free ports.

Advisories and patches

www.cisa.govMitigation

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2024-10-27
OpenCVESSVC decisionnone—
CISA-ADPCVSS 3.19.12024-07-30
NVDCVSS 3.19.1read 2026-10-23
CISA-ADPweakness (CWE)CWE-3062024-07-30
NVDweakness (CWE)CWE-306read 2026-10-23
FIRST EPSSEPSS score1.3 %2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Published: 2022-07-26
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2022-29951?

Is CVE-2022-29951 actively exploited?

Active exploitation of CVE-2022-29951 has not been confirmed. Its EPSS score was 1.3% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-29951?

CVE-2022-29951 has a CVSS v3 base score of 9.1 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.

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Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

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