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

CVE-2022-29951 has a CVSS 3.1 base score of 9.1 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H. EPSS exploitation probability: 1.0%.

Pc10G Cpu Tcc 6353 Firmware CVE-2022-29951

CRITICAL

Missing Authentication for Critical Function (CWE-306)

2022-07-26 cve@mitre.org

Authentication Bypass Pc10G Cpu Tcc 6353 Firmware Pc10Ge Tcc 6464 Firmware Pc10P Tcc 6372 Firmware Pc10P Dp Tcc 6726 Firmware Pc10P Dp Io Tcc 6752 Firmware Pc10B P Tcc 6373 Firmware Pc10B Tcc 1021 Firmware Pc10E Tcc 4737 Firmware Pc10El Tcc 4747 Firmware Plus Cpu Tcc 6740 Firmware Pc3Jx Tcc 6901 Firmware Pc3Jx D Tcc 6902 Firmware Pc10Pe Tcc 1101 Firmware Pc10Pe 1616P Tcc 1102 Firmware Pcdl Tkc 6688 Firmware Nano 10Gx Tuc 1157 Firmware Nano Cpu Tuc 6941 Firmware

9.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.1 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Jul 26, 2022 - 22:15 nvd

CRITICAL 9.1

DescriptionNVD

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.

AnalysisAI

JTEKT TOYOPUC PLCs through 2022-04-29 mishandle authentication. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Missing Authentication for Critical Function (CWE-306), which allows attackers to access critical functionality without authentication. 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. Affected products include: 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. Version information: through 2022.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Require authentication for all sensitive operations, implement defense in depth.