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cve[email protected]CVE-2018-7843
HistoryMay 22, 2019 - 8:29 p.m.

CVE-2018-7843

2019-05-2220:29:01
CWE-125
web.nvd.nist.gov
39
cve-2018-7843
cwe-248
uncaught exception
modicon m580
modicon m340
modicon quantum
modicon premium
denial of service
modbus
memory blocks

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

7.3 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

49.0%

A CWE-248: Uncaught Exception vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause denial of service when reading memory blocks with an invalid data size or with an invalid data offset in the controller over Modbus.

Affected configurations

NVD
Node
schneider-electricmodicon_m580_firmware
AND
schneider-electricmodicon_m580Match-
Node
schneider-electricmodicon_m340_firmware
AND
schneider-electricmodicon_m340Match-
Node
schneider-electricmodicon_quantum_firmware
AND
schneider-electricmodicon_quantumMatch-
Node
schneider-electricmodicon_premium_firmware
AND
schneider-electricmodicon_premiumMatch-

CNA Affected

[
  {
    "product": "Modicon M580 Modicon M340 Modicon Quantum Modicon Premium",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "Modicon M580 Modicon M340 Modicon Quantum Modicon Premium"
      }
    ]
  }
]

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

7.3 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

49.0%