Cisco Adaptive Security Appliance Software DoS (cisco-sa-asaftd-dos-QFcNEPfx)

high Nessus Plugin ID 149312
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The remote device is missing a vendor-supplied security patch


According to its self-reported version, the TCP packet processing of Cisco Adaptive Security Appliance Software is affected by denial of service vulnerability due to a memory exhaustion condition. An unauthenticated, remote attacker can exploit this by sending a high rate of crafted TCP traffic through an affected device. A successful exploit could allow the attacker to exhaust device resources, resulting in a DoS condition for traffic transiting the affected device.

Please see the included Cisco BID 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.


Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvt35897

See Also

Plugin Details

Severity: High

ID: 149312

File Name: cisco-sa-asaftd-dos-QFcNEPfx-asa.nasl

Version: 1.6

Type: local

Family: CISCO

Published: 5/6/2021

Updated: 5/20/2021

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2020-3554


Risk Factor: Low

Score: 3.6


Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

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


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: E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:cisco:adaptive_security_appliance_software

Required KB Items: Host/Cisco/ASA, Host/Cisco/ASA/model

Exploit Ease: No known exploits are available

Patch Publication Date: 10/21/2020

Vulnerability Publication Date: 10/21/2020

Reference Information

CVE: CVE-2020-3554

IAVA: 2020-A-0488


CISCO-SA: cisco-sa-asaftd-dos-QFcNEPfx

CWE: 400