CVE-2021-20591
Published Jun 11, 2021
Last updated 3 years ago
Overview
- Description
- Uncontrolled Resource Consumption vulnerability in Mitsubishi Electric MELSEC iQ-R series CPU modules (R00/01/02CPU all versions, R04/08/16/32/120(EN)CPU all versions, R08/16/32/120SFCPU all versions, R08/16/32/120PCPU all versions, R08/16/32/120PSFCPU all versions) allows a remote unauthenticated attacker to prevent legitimate clients from connecting to the MELSOFT transmission port (TCP/IP) by not closing a connection properly, which may lead to a denial of service (DoS) condition.
- Source
- Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 7.5
- Impact score
- 3.6
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Severity
- HIGH
CVSS 2.0
- Type
- Primary
- Base score
- 7.8
- Impact score
- 6.9
- Exploitability score
- 10
- Vector string
- AV:N/AC:L/Au:N/C:N/I:N/A:C
Weaknesses
- nvd@nist.gov
- CWE-400
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mitsubishielectric:r00cpu_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B45CE88C-9D71-4F5F-B10B-ABBAE40597FD"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mitsubishielectric:r00cpu:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "B0A23F21-9C5F-4CB3-BA20-4195B2165D26"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mitsubishielectric:r01cpu_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E1D54E1B-A2E3-49E7-B7A0-B693AA9E410F"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mitsubishielectric:r01cpu:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "CADF6528-4B25-4779-A06F-2C4DF91DAE90"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mitsubishielectric:r02cpu_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "927EB3AB-4EE4-4FC0-AADE-939C2BB89850"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mitsubishielectric:r02cpu:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "2D753C47-ED9C-453F-AC1F-C50476BE61C0"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mitsubishielectric:r04cpu_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F60DD8B4-CFF5-4331-8BC2-49D3583B0F6B"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mitsubishielectric:r04cpu:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "BDEEF15E-FE32-4610-9E14-891069573E4D"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mitsubishielectric:r08cpu_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5755570C-4913-44C4-A906-BBB59616D336"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mitsubishielectric:r08cpu:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "2DAA2202-88D5-4329-BF51-0F18C350C45C"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mitsubishielectric:r16cpu_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5996B1E9-F9AD-4890-833E-926B31AE9113"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mitsubishielectric:r16cpu:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "30016EA0-FB24-4382-8960-6A75D32C9BD7"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mitsubishielectric:r32cpu_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F1B0629A-A3AA-4FEF-9F93-5E86DF3B9B16"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mitsubishielectric:r32cpu:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "DAF6EB84-7D97-4606-A90F-9D443CBC4755"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mitsubishielectric:r120cpu_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0C593DC3-776B-483C-A6B8-03A65671D4B1"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mitsubishielectric:r120cpu:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "3EF7D08E-D3D1-48D4-9440-B94B7A2BD662"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mitsubishielectric:r08sfcpu_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "66D3AC7B-50E0-47D5-B0D1-07329D724EFE"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mitsubishielectric:r08sfcpu:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "B185323A-C9E3-48A0-AD28-DA7AC7846E18"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mitsubishielectric:r16sfcpu_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "AA81D5C7-46C8-4F0E-9550-D240DC0366F3"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mitsubishielectric:r16sfcpu:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "C4BBE066-33C4-4410-85D3-4B77B3773330"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mitsubishielectric:r32sfcpu_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "7FB53D61-6C69-4A4A-92B1-C10D0B8F0EC9"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mitsubishielectric:r32sfcpu:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "6F6304BE-DAEE-49AB-B0B1-CEE6878CBECE"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mitsubishielectric:r120sfcpu_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "8218130C-4E7D-4FB9-976B-2351977C82D4"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mitsubishielectric:r120sfcpu:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "515BDC46-5A1C-4A94-816A-B4751BB1B58D"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mitsubishielectric:r08pcpu_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "63442274-452B-4361-A2AD-2ACBD699B150"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mitsubishielectric:r08pcpu:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "3845683A-A4D2-422F-9736-D0D7A430555F"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mitsubishielectric:r16pcpu_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "EE0EA636-84E9-4DAA-BE39-DBA9D7B857F4"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mitsubishielectric:r16pcpu:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "EA04F2DD-4D51-4D4F-B3C7-D5EFACAD6EFB"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mitsubishielectric:r32pcpu_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "275C5686-5333-440F-8C85-8C2FB91FC2DA"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mitsubishielectric:r32pcpu:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "3EA2A77C-86CE-48E1-87A4-A69895102D49"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mitsubishielectric:r120pcpu_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5EC951AC-3538-4711-A034-6C1A94AD797F"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mitsubishielectric:r120pcpu:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "E0FE9EA6-6BCE-40F7-8AE8-173F7CDF3EF6"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mitsubishielectric:r08psfcpu_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5A63D33D-302A-428C-986F-FC3F83CE9C86"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mitsubishielectric:r08psfcpu:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "EA37F2FC-8F75-4FEA-882D-87AD5CC1558E"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mitsubishielectric:r16psfcpu_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "FFB42739-E503-44B2-A020-0DB2B8791A81"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mitsubishielectric:r16psfcpu:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "17AD5875-B7D7-498B-9484-23049753133E"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mitsubishielectric:r32psfcpu_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "3B1F532B-8EAF-4E66-9AF5-5EEFF5A0BC23"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mitsubishielectric:r32psfcpu:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "0EC2594C-6067-40BA-B8B2-AEC9B9C7922F"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mitsubishielectric:r120psfcpu_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B2C03EA2-34BF-4F86-A19C-2818788E092B"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mitsubishielectric:r120psfcpu:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "CA3FB3E1-D7D3-424B-A207-D3C6F4365D12"
}
],
"operator": "OR"
}
],
"operator": "AND"
}
]