Palo Alto Networks PAN-OS 8.0.x / 8.1.x < 8.1.16 DoS

high Nessus Plugin ID 140529


The remote PAN-OS host is affected by a denial of service vulnerability


The version of Palo Alto Networks PAN-OS running on the remote host is 8.0.x or 8.1.x prior to 8.1.16. It is, therefore, affected by a denial of service (DoS) vulnerability. An insecure configuration of the appweb daemon allows a remote, unauthenticated user to send a specifically crafted request to the device that causes the appweb service to crash. Repeated attempts to send this request result in denial of service to all PAN-OS services by restarting the device and putting it into maintenance mode.

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


Upgrade to PAN-OS 8.1.16 or later

See Also

Plugin Details

Severity: High

ID: 140529

File Name: palo_alto_CVE-2020-2041.nasl

Version: 1.3

Type: combined

Published: 9/11/2020

Updated: 11/13/2020

Risk Information


Risk Factor: Medium

Score: 5.1


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

CVSS Score Source: CVE-2020-2041


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:/o:paloaltonetworks:pan-os

Required KB Items: Host/Palo_Alto/Firewall/Version, Host/Palo_Alto/Firewall/Full_Version, Host/Palo_Alto/Firewall/Source

Exploit Ease: No known exploits are available

Patch Publication Date: 9/9/2020

Vulnerability Publication Date: 9/9/2020

Reference Information

CVE: CVE-2020-2041

IAVA: 2020-A-0418-S