CVE-2020-2039

Name: CVE-2020-2039
Creator: NVD / NIST
Published: 2020-09-09T17:15:25.823+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 46.38%

Last modified Jun 17, 2026

CVE-2020-2039 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. An uncontrolled resource consumption vulnerability in Palo Alto Networks PAN-OS allows for a remote unauthenticated user to upload temporary files through the management web interface that are not properly deleted after the request is finished. It is possible for an attacker to disrupt the availability of the management web interface by repeatedly uploading files until available disk space is exhausted. EPSS estimates a 46.38% chance of exploitation in the next 30 days.

Description

An uncontrolled resource consumption vulnerability in Palo Alto Networks PAN-OS allows for a remote unauthenticated user to upload temporary files through the management web interface that are not properly deleted after the request is finished. It is possible for an attacker to disrupt the availability of the management web interface by repeatedly uploading files until available disk space is exhausted. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.16; PAN-OS 9.0 versions earlier than PAN-OS 9.0.10; PAN-OS 9.1 versions earlier than PAN-OS 9.1.4; PAN-OS 10.0 versions earlier than PAN-OS 10.0.1.

Metrics

CVSS 3.1

5.3/10

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

EPSS Probability

46.38%

98.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Paloaltonetworks	Pan-Os	>= 8.1.0, < 8.1.16
Paloaltonetworks	Pan-Os	>= 9.0.0, < 9.0.10
Paloaltonetworks	Pan-Os	>= 9.1.0, < 9.1.4
Paloaltonetworks	Pan-Os	>= 10.0.0, < 10.0.1

References

https://security.paloaltonetworks.com/CVE-2020-2039Vendor Advisory
https://security.paloaltonetworks.com/CVE-2020-2039Vendor Advisory

Timeline

Published: Sep 9, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-2039?

How severe is CVE-2020-2039?

CVE-2020-2039 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 46.38% probability of exploitation in the next 30 days.

How do I fix CVE-2020-2039?

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-2020-2039?

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

Scan your code now

Source: NVD / NIST