How severe is CVE-2022-29951?

CVE-2022-29951 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2022-29951 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-29951?

CVE-2022-29951 primarily affects Jtekt Pc10g-cpu Tcc-6353 Firmware. In total, 17 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-29951?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2022-29951 published?

CVE-2022-29951 was published on 2022-07-26 and last updated on 2026-06-17.

CVE-2022-29951

CVE-2022-29951 is a critical-severity vulnerability in Jtekt Pc10g-cpu Tcc-6353 Firmware with a CVSS 3.x base score of 9.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-306.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Affected product: Jtekt Pc10g-cpu Tcc-6353 Firmware
Published: 2022-07-26
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2022-29951?: 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.
How severe is CVE-2022-29951?: CVE-2022-29951 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2022-29951 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-29951?: CVE-2022-29951 primarily affects Jtekt Pc10g-cpu Tcc-6353 Firmware. In total, 17 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-29951?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2022-29951 published?: CVE-2022-29951 was published on 2022-07-26 and last updated on 2026-06-17.

References

Affected products (17)

cpe:2.3:o:jtekt:pc10g-cpu_tcc-6353_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:jtekt:pc10ge_tcc-6464_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:jtekt:pc10p_tcc-6372_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:jtekt:pc10p-dp_tcc-6726_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:jtekt:pc10p-dp-io_tcc-6752_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:jtekt:pc10b-p_tcc-6373_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:jtekt:pc10b_tcc-1021_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:jtekt:pc10e_tcc-4737_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:jtekt:pc10el_tcc-4747_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:jtekt:plus_cpu_tcc-6740_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:jtekt:pc3jx_tcc-6901_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:jtekt:pc3jx-d_tcc-6902_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:jtekt:pc10pe_tcc-1101_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:jtekt:pc10pe-1616p_tcc-1102_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:jtekt:pcdl_tkc-6688_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:jtekt:nano_10gx_tuc-1157_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:jtekt:nano_cpu_tuc-6941_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Jtekt Pc10g-cpu Tcc-6353 Firmware

CVE-2022-29958 — Critical (CVSS 9.8): JTEKT TOYOPUC PLCs through 2022-04-29 do not ensure data integrity. They utilize the unauthenticated CMPLink/TCP…
CVE-2021-27458 — High (CVSS 7.5): If Ethernet communication of the JTEKT Corporation TOYOPUC product series’ (TOYOPUC-PC10 Series: PC10G-CPU TCC-6353:…
CVE-2021-33011 — Medium (CVSS 4.3): All versions of the afffected TOYOPUC-PC10 Series,TOYOPUC-Plus Series,TOYOPUC-PC3J/PC2J Series, TOYOPUC-Nano Series…

All CVEs affecting Jtekt Pc10g-cpu Tcc-6353 Firmware →

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