Cisco Firepower Threat Defense DOS (cisco-sa-20191002-asa-dos)

high Nessus Plugin ID 133851


The remote device is affected by a denial of service vulnerability


A denial of service vulnerability exists in the FTP inspection engine of Firepower Threat Defense (FTD) software due to insufficient validation of FTP data. An unauthenticated, remote attacker can exploit this to cause to cause the system to stop responding.

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

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.


Update to a fixed version based on your hardware. Please refer to Cisco bug ID CSCvo83169.

See Also

Plugin Details

Severity: High

ID: 133851

File Name: cisco-sa-20191002-asa-dos-ftd.nasl

Version: 1.8

Type: local

Family: CISCO

Published: 2/21/2020

Updated: 4/7/2021

Risk Information


Risk Factor: Low

Score: 3.6


Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2019-12673


Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: cpe:/a:cisco:adaptive_security_appliance_software

Required KB Items: installed_sw/Cisco Firepower Threat Defense

Exploit Ease: No known exploits are available

Patch Publication Date: 10/2/2019

Vulnerability Publication Date: 10/2/2019

Reference Information

CVE: CVE-2019-12673

CISCO-SA: cisco-sa-20191002-asa-dos

IAVA: 2019-A-0370