Cisco NX-OS Software Cisco Fabric Services DoS (cisco-sa-fxos-nxos-cfs-dos-dAmnymbd)

High Nessus Plugin ID 142423

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VPR Score: 4.4


The remote device is missing a vendor-supplied security patch


According to its self-reported version, the Cisco NX-OS Software is affected by a denial of service (DoS) vulnerability. It exists in Cisco fabric services due to insufficient error handling of Cisco fabric service messages. An unauthenticated, remote attacker can exploit this issue, via sending crafted Cisco fabric service messages to an affected device, resulting in a Denial of Service event.

Please see the included Cisco BIDs and Cisco Security Advisory for more information.


Upgrade to the relevant fixed version referenced in Cisco bug IDs CSCvt39630, CSCvt46835, CSCvt46837

See Also

Plugin Details

Severity: High

ID: 142423

File Name: cisco-sa-fxos-nxos-cfs-dos-dAmnymbd.nasl

Version: 1.5

Type: combined

Family: CISCO

Published: 2020/11/04

Updated: 2020/11/05

Dependencies: 66696

Risk Information

Risk Factor: High

VPR Score: 4.4

CVSS Score Source: CVE-2020-3517

CVSS v2.0

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 8.6

Temporal Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:cisco:nx-os

Required KB Items: Host/Cisco/NX-OS/Version, Host/Cisco/NX-OS/Model, Host/Cisco/NX-OS/Device

Exploit Ease: No known exploits are available

Patch Publication Date: 2020/08/26

Vulnerability Publication Date: 2020/08/26

Reference Information

CVE: CVE-2020-3517