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cve[email protected]CVE-2020-3221
HistoryJun 03, 2020 - 6:15 p.m.

CVE-2020-3221

2020-06-0318:15:20
CWE-20
web.nvd.nist.gov
33
cisco
catalyst
wireless
controllers
vulnerability
cve-2020-3221
dos
netflow

8.6 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

8.4 High

AI Score

Confidence

High

7.8 High

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

0.002 Low

EPSS

Percentile

52.7%

A vulnerability in the Flexible NetFlow Version 9 packet processor of Cisco IOS XE Software for Cisco Catalyst 9800 Series Wireless Controllers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper validation of parameters in a Flexible NetFlow Version 9 record. An attacker could exploit this vulnerability by sending a malformed Flexible NetFlow Version 9 packet to the Control and Provisioning of Wireless Access Points (CAPWAP) data port of an affected device. An exploit could allow the attacker to trigger an infinite loop, resulting in a process crash that would cause a reload of the device.

Affected configurations

NVD
Node
ciscoios_xeMatch16.10.1
OR
ciscoios_xeMatch16.10.1a
OR
ciscoios_xeMatch16.10.1b
OR
ciscoios_xeMatch16.10.1e
OR
ciscoios_xeMatch16.10.1s
OR
ciscoios_xeMatch16.10.2
OR
ciscoios_xeMatch16.11.1
OR
ciscoios_xeMatch16.11.1a
OR
ciscoios_xeMatch16.11.1b
OR
ciscoios_xeMatch16.11.1c
OR
ciscoios_xeMatch16.11.1s
OR
ciscoios_xeMatch16.12.1
OR
ciscoios_xeMatch16.12.1a
OR
ciscoios_xeMatch16.12.1c
OR
ciscoios_xeMatch16.12.1s
OR
ciscoios_xeMatch16.12.1t
AND
ciscocatalyst_9800-40Match-
OR
ciscocatalyst_9800-80Match-
OR
ciscocatalyst_9800-clMatch-
OR
ciscocatalyst_9800-lMatch-
OR
ciscocatalyst_9800-l-cMatch-
OR
ciscocatalyst_9800-l-fMatch-

CNA Affected

[
  {
    "product": "Cisco IOS XE Software 16.10.1",
    "vendor": "Cisco",
    "versions": [
      {
        "status": "affected",
        "version": "n/a"
      }
    ]
  }
]

8.6 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

8.4 High

AI Score

Confidence

High

7.8 High

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

0.002 Low

EPSS

Percentile

52.7%

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