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cvelistABBCVELIST:CVE-2020-11637
HistoryOct 15, 2020 - 3:08 p.m.

CVE-2020-11637 Automation Runtime TFTP Service DoS Vulnerability

2020-10-1515:08:14
CWE-401
ABB
www.cve.org
6
cve-2020-11637
b&r automation runtime
tftp service
dos vulnerability
memory leak

CVSS3

5.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

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

EPSS

0.001

Percentile

44.5%

A memory leak in the TFTP service in B&R Automation Runtime versions <N4.26, <N4.34, <F4.45, <E4.53, <D4.63, <A4.73 and prior could allow an unauthenticated attacker with network access to cause a denial of service (DoS) condition.

CNA Affected

[
  {
    "product": "Automation Runtime",
    "vendor": "B&R",
    "versions": [
      {
        "lessThanOrEqual": "4.1x",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThan": "N4.26",
        "status": "affected",
        "version": "4.2x",
        "versionType": "custom"
      },
      {
        "lessThan": "N4.34",
        "status": "affected",
        "version": "4.3x",
        "versionType": "custom"
      },
      {
        "lessThan": "F4.45",
        "status": "affected",
        "version": "4.4x",
        "versionType": "custom"
      },
      {
        "lessThan": "E4.53",
        "status": "affected",
        "version": "4.5x",
        "versionType": "custom"
      },
      {
        "lessThan": "D4.63",
        "status": "affected",
        "version": "4.6x",
        "versionType": "custom"
      },
      {
        "lessThan": "A4.73",
        "status": "affected",
        "version": "4.7x",
        "versionType": "custom"
      }
    ]
  }
]

CVSS3

5.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

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

EPSS

0.001

Percentile

44.5%

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