Is CVE-2022-29958 actively exploited?

No active exploitation of CVE-2022-29958 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2022-29958 be exploited remotely?

Yes. CVE-2022-29958 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2022-29958?

CVE-2022-29958 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2022-29958

CRITICAL

CVE-2022-29958

CWE-345Published: July 26, 2022· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

JTEKT TOYOPUC PLCs through 2022-04-29 do not ensure data integrity. They utilize the unauthenticated CMPLink/TCP protocol for engineering purposes, including downloading projects and control logic to the PLC. Control logic is downloaded to the PLC on a block-by-block basis with a given memory address and a blob of machine code. The logic that is downloaded to the PLC is not cryptographically authenticated, allowing an attacker to execute arbitrary machine code on the PLC's CPU module in the context of the runtime. In the case of the PC10G-CPU, and likely for other CPU modules of the TOYOPUC family, a processor without MPU or MMU is used and this no memory protection or privilege-separation capabilities are available, giving an attacker full control over the CPU.

NVD Source

Risk Analysis

JTEKT TOYOPUC PLCs lack data integrity checks in the CMPLink/TCP protocol, allowing attackers to download and execute arbitrary machine code. Because these devices often lack memory protection, an attacker can gain full control over the CPU. The 9.8 CVSS score highlights the urgency of this flaw.

No public exploit is known for this vulnerability, and it is not in CISA KEV. The flaw is remotely exploitable.

Recommended Action

Restrict access to the CMPLink/TCP ports to authorized engineering workstations only. Consult JTEKT for any available security updates or configuration hardening.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2022-29958 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Affected Vendors & Products

jtekt34 product(s)

pc10g-cpu tcc-6353 firmwarepc10g-cpu tcc-6353pc10ge tcc-6464 firmwarepc10ge tcc-6464pc10p tcc-6372 firmwarepc10p tcc-6372pc10p-dp tcc-6726 firmwarepc10p-dp tcc-6726pc10p-dp-io tcc-6752 firmwarepc10p-dp-io tcc-6752pc10b-p tcc-6373 firmwarepc10b-p tcc-6373+22

Source: NVD CPE · 34 total CPE entries