Cisco Firepower Threat Defense Software Generic Routing Encapsulation DoS (cisco-sa-ftd-gre-dos-hmedHQPM)

high Nessus Plugin ID 167271


The remote device is missing a vendor-supplied security patch


According to its self-reported version, Cisco FTD Software is affected by a denial of service vulnerability. An unauthenticated, remote attacker can exploit this, by sending a crafted GRE payload through an affected device, to cause the affected device to restart.

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 CSCwb66761

See Also

Plugin Details

Severity: High

ID: 167271

File Name: cisco-sa-ftd-gre-dos-hmedHQPM.nasl

Version: 1.9

Type: local

Family: CISCO

Published: 11/10/2022

Updated: 3/31/2023

Supported Sensors: Nessus

Risk Information


Risk Factor: Low

Score: 3.6


Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2022-20946


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:/o:cisco:firepower_threat_defense

Required KB Items: installed_sw/Cisco Firepower Threat Defense

Exploit Ease: No known exploits are available

Patch Publication Date: 11/9/2022

Vulnerability Publication Date: 11/9/2022

Reference Information

CVE: CVE-2022-20946

CWE: 122

CISCO-SA: cisco-sa-ftd-gre-dos-hmedHQPM

IAVA: 2022-A-0487-S