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01 Record

CVE-2022-40265

Denial of Service (DoS) Vulnerability in MELSEC iQ-R Series Ethernet Interface Module

HighPUBLISHEDCNA: Mitsubishi
CNA base score8.6 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

02 Description

Denial of Service (DoS) Vulnerability in MELSEC iQ-R Series Ethernet Interface Module

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.99% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 62.4% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2022-11-30 00:04Z3 YR AGO
Last updated
2025-04-24 18:45Z1 YR AGO
Reserved
2022-09-08
Assigning CNA
Mitsubishi
Record state
PUBLISHED
Severity
High (CVSS 8.6)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Weaknesses
  • CWE-20Improper Input ValidationClass
Data version
5.1
Document digest
e3da97fe9091166cf5b68058fb854eb520a88daa871688ecc7e8256baedb6d29

05 Affected products

VendorProductVersionsPlatforms
Mitsubishi Electric CorporationMELSEC iQ-R Series RJ71EN71Firmware version "65" and prior—
Mitsubishi Electric CorporationMELSEC iQ-R Series R04/08/16/32/120ENCPUNetwork Part Firmware version "65" and prior—

06 References