What is CVE-2020-1999?

CVE-2020-1999 is a vulnerability that exists in the Palo Alto Network PAN-OS signature-based threat detection engine.

How does CVE-2020-1999 work?

CVE-2020-1999 allows an attacker to communicate with devices in the network by sending data through specifically crafted TCP packets.

Which software versions are affected by CVE-2020-1999?

Palo Alto Network PAN-OS versions 7.1.0 to 7.1.26, 8.0.0 to 8.0.20, 8.1.0 to 8.1.17, 9.0.0 to 9.0.11, and 9.1.0 to 9.1.5 are affected by CVE-2020-1999.

What is the severity of CVE-2020-1999?

CVE-2020-1999 has a severity rating of 5.3, which is considered medium.

How can I mitigate CVE-2020-1999?

Palo Alto Networks has released a security advisory and software updates to address CVE-2020-1999. It is recommended to update to the latest version of PAN-OS.

Vulnerability/
CVE-2020-1999

medium

5.3

CWE

754

12/11/2020

16/11/2020

CVE-2020-1999

First published: Thu Nov 12 2020(Updated: )

A vulnerability exists in the Palo Alto Network PAN-OS signature-based threat detection engine that allows an attacker to communicate with devices in the network in a way that is not analyzed for threats by sending data through specifically crafted TCP packets. This technique evades signature-based threat detection. This issue impacts: PAN-OS 8.1 versions earlier than 8.1.17; PAN-OS 9.0 versions earlier than 9.0.11; PAN-OS 9.1 versions earlier than 9.1.5; All versions of PAN-OS 7.1 and PAN-OS 8.0.

Credit: psirt@paloaltonetworks.com

Affected Software	Affected Version	How to fix
Paloaltonetworks Pan-os	>=7.1.0<=7.1.26
Paloaltonetworks Pan-os	>=8.0.0<=8.0.20
Paloaltonetworks Pan-os	>=8.1.0<8.1.17
Paloaltonetworks Pan-os	>=9.0.0<9.0.11
Paloaltonetworks Pan-os	>=9.1.0<9.1.5

Never miss a vulnerability like this again

Reference Links

https://security.paloaltonetworks.com/CVE-2020-1999

Frequently Asked Questions

What is CVE-2020-1999?
CVE-2020-1999 is a vulnerability that exists in the Palo Alto Network PAN-OS signature-based threat detection engine.
How does CVE-2020-1999 work?
CVE-2020-1999 allows an attacker to communicate with devices in the network by sending data through specifically crafted TCP packets.
Which software versions are affected by CVE-2020-1999?
Palo Alto Network PAN-OS versions 7.1.0 to 7.1.26, 8.0.0 to 8.0.20, 8.1.0 to 8.1.17, 9.0.0 to 9.0.11, and 9.1.0 to 9.1.5 are affected by CVE-2020-1999.
What is the severity of CVE-2020-1999?
CVE-2020-1999 has a severity rating of 5.3, which is considered medium.
How can I mitigate CVE-2020-1999?
Palo Alto Networks has released a security advisory and software updates to address CVE-2020-1999. It is recommended to update to the latest version of PAN-OS.

collector/nvd-index
vendor/paloaltonetworks
canonical/paloaltonetworks pan-os
version/paloaltonetworks pan-os/7.1.0
version/paloaltonetworks pan-os/7.1.26
version/paloaltonetworks pan-os/8.0.0
version/paloaltonetworks pan-os/8.0.20
version/paloaltonetworks pan-os/8.1.0
version/paloaltonetworks pan-os/9.0.0
version/paloaltonetworks pan-os/9.1.0

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.