CVE-2020-1996

Name: CVE-2020-1996
Creator: NVD / NIST
Published: 2020-05-13T19:15:12.613+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.91%

Last modified Jun 17, 2026

CVE-2020-1996 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. A missing authorization vulnerability in the management server component of PAN-OS Panorama allows a remote unauthenticated user to inject messages into the management server ms.log file. This vulnerability can be leveraged to obfuscate an ongoing attack or fabricate log entries in the ms.log file This issue affects: All versions of PAN-OS 7.1 and 8.0; PAN-OS 8.1 versions earlier than 8.1.14; PAN-OS 9.0 versions earlier than 9.0.9.. EPSS estimates a 0.91% chance of exploitation in the next 30 days.

Description

A missing authorization vulnerability in the management server component of PAN-OS Panorama allows a remote unauthenticated user to inject messages into the management server ms.log file. This vulnerability can be leveraged to obfuscate an ongoing attack or fabricate log entries in the ms.log file This issue affects: All versions of PAN-OS 7.1 and 8.0; PAN-OS 8.1 versions earlier than 8.1.14; PAN-OS 9.0 versions earlier than 9.0.9.

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS Probability

0.91%

55.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Paloaltonetworks	Pan-Os	>= 7.1.0, <= 7.1.26
Paloaltonetworks	Pan-Os	>= 8.0.0, <= 8.0.20
Paloaltonetworks	Pan-Os	>= 8.1.0, <= 8.1.13
Paloaltonetworks	Pan-Os	>= 9.0.0, <= 9.0.8

References

https://security.paloaltonetworks.com/CVE-2020-1996Vendor Advisory
https://security.paloaltonetworks.com/CVE-2020-1996Vendor Advisory

Timeline

Published: May 13, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-1996?

How severe is CVE-2020-1996?

CVE-2020-1996 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.91% probability of exploitation in the next 30 days.

How do I fix CVE-2020-1996?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-1996?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST